feat(compose): lay the composer out by scope

Items 142, 143, 144 and 145, to the layout the user described.

The composer had one addToolBar carrying three scopes at once: text
formatting, message composition, and the terminal action. It read as a menu
bar that is not one. There is now no window toolbar at all.

  From:    [.............]        +--------+
  To:      [.........] [v Cc/Bcc] |   Send |
  Subject: [...........................]   +
  [B][I][</>][S][link]["]   [Attach] [Send as HTML]
  +---------------------------------------------+
  | message text                                |
  +---------------------------------------------+
  [Remove]  * report.pdf        <- only when attached

Send is a large icon-above-text button beside the headers: it is the
terminal action and carries the weight to match. Formatting is a toolbar
widget in the central column directly above the text it formats, icon-only
with the words kept as tooltips, which is where a tooltip stops being
decoration. Attach and the HTML toggle ride the right end of that bar, past
a stretch, because neither formats text. Remove attachment sits with the
list it acts on and appears only once something is attached.

"Also send a formatted copy" becomes "Send as HTML": the old label described
a mechanism without naming it, leaving the reader to infer that "formatted"
meant HTML and that "copy" meant a MIME part rather than a second message.

Cc and Bcc hide behind a disclosure beside To:. revealCcBccIfUsed() only
ever shows, never hides, so nothing but the user's own click can make a
field holding an address invisible: a hidden recipient is a message going
somewhere the sender cannot see, which is worse than the clutter this
removes. The label is hidden with each field, since a QFormLayout holds the
two as separate items and hiding the line edit alone strands a "Cc:" over
empty space.

Two send-lock faults, one predicted and one not. The backlog warned that
setInputsEnabled() disabled the single toolbar wholesale, so the send-path
test was strengthened to name every control BEFORE the split; it then caught
Attach live during a countdown, where a file appended after MessageBuilder
has run is either dropped or added to bytes already sent, silently either
way. With every control named it failed again on format_bold: disabling a
QToolBar greys its buttons but leaves each QAction enabled, so Ctrl+B during
a send would have edited a message already being built, through a button
that looked unavailable. setInputsEnabled() now walks the bar's actions too.

The Italian translation is refreshed; lrelease reports 477 finished, 0
unfinished.

1 files changed, 33 insertions, 14 deletions

diff --git a/translations/qtmaildir_it_IT.ts b/translations/qtmaildir_it_IT.ts
index f8a2b03..0b54957 100644
--- a/translations/qtmaildir_it_IT.ts
+++ b/translations/qtmaildir_it_IT.ts
@@ -8,10 +8,29 @@
         <translation>Componi</translation>
     </message>
     <message>
+        <source>The forwarded attachments could not be extracted.</source>
+        <translation>Non è stato possibile estrarre gli allegati inoltrati.</translation>
+    </message>
+    <message numerus="yes">
+        <source>%n forwarded attachment(s) could not be extracted: %1</source>
+        <translation>
+            <numerusform>Non è stato possibile estrarre %n allegato inoltrato: %1</numerusform>
+            <numerusform>Non è stato possibile estrarre %n allegati inoltrati: %1</numerusform>
+        </translation>
+    </message>
+    <message>
         <source>From:</source>
         <translation>Da:</translation>
     </message>
     <message>
+        <source>Cc/Bcc</source>
+        <translation>Cc/Ccn</translation>
+    </message>
+    <message>
+        <source>Show or hide the Cc and Bcc fields</source>
+        <translation>Mostra o nascondi i campi Cc e Ccn</translation>
+    </message>
+    <message>
         <source>To:</source>
         <translation>A:</translation>
     </message>
@@ -28,14 +47,6 @@
         <translation>Oggetto:</translation>
     </message>
     <message>
-        <source>Also send a formatted copy</source>
-        <translation>Invia anche una copia formattata</translation>
-    </message>
-    <message>
-        <source>Sends the message as plain text with a formatted version alongside it. The plain text is what you typed.</source>
-        <translation>Invia il messaggio come testo semplice con accanto una versione formattata. Il testo semplice è quello che hai scritto.</translation>
-    </message>
-    <message>
         <source>Send output</source>
         <translation>Output dell’invio</translation>
     </message>
@@ -44,10 +55,6 @@
         <translation>Chiudi</translation>
     </message>
     <message>
-        <source>Formatting</source>
-        <translation>Formattazione</translation>
-    </message>
-    <message>
         <source>Bold</source>
         <translation>Grassetto</translation>
     </message>
@@ -84,6 +91,14 @@
         <translation>Rimuovi allegato</translation>
     </message>
     <message>
+        <source>Send as HTML</source>
+        <translation>Invia come HTML</translation>
+    </message>
+    <message>
+        <source>Sends the message as plain text with an HTML version alongside it. The plain text is what you typed.</source>
+        <translation>Invia il messaggio come testo semplice con una versione HTML a fianco. Il testo semplice è quello che hai scritto.</translation>
+    </message>
+    <message>
         <source>Send</source>
         <translation>Invia</translation>
     </message>
@@ -179,8 +194,8 @@ Il messaggio È stato inviato. Non inviarlo di nuovo.</translation>
         <translation>L&apos;account &apos;%1&apos; non ha un cestino configurato; aggiungere una chiave &apos;trash&apos; alla sua sezione. L&apos;eliminazione non funzionerà per questo account finché non verrà fatto.</translation>
     </message>
     <message>
-        <source>[compose] quote_position &apos;%1&apos; is not recognised; expected above or below. Using above.</source>
-        <translation>[compose] quote_position &apos;%1&apos; non è riconosciuto; atteso above o below. Verrà usato above.</translation>
+        <source>[compose] quote_position &apos;%1&apos; is not recognised; expected above or below. Using below.</source>
+        <translation>[compose] quote_position &apos;%1&apos; non è riconosciuto; atteso above o below. Uso below.</translation>
     </message>
     <message>
         <source>[compose] autosave_interval_ms &apos;%1&apos; is not a number; using %2.</source>
@@ -1098,6 +1113,10 @@ Il messaggio È stato inviato. Non inviarlo di nuovo.</translation>
         </translation>
     </message>
     <message>
+        <source>That message is no longer indexed</source>
+        <translation>Quel messaggio non è più indicizzato</translation>
+    </message>
+    <message>
         <source>(unreadable message)</source>
         <translation>(messaggio illeggibile)</translation>
     </message>