feat(desktop): move mail-overview in as the mail module

Accounts.qml is unchanged and MailPanel's body becomes the page. The
three scripts move with it, which changes the absolute paths in autostart
and in the waybar module; both are outside this repo and listed in the
plan's final task. Button.qml, byte-identical here and in vm-manager,
lands at the shell root as the single copy.

1 files changed, 45 insertions, 0 deletions

diff --git a/desktop/Button.qml b/desktop/Button.qml
new file mode 100644
index 0000000..d6ca78f
--- /dev/null
+++ b/desktop/Button.qml
@@ -0,0 +1,45 @@
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+import QtQuick
+
+Rectangle {
+    id: btn
+    property alias text: label.text
+    property bool danger: false
+    property bool enabled: true
+    signal clicked
+
+    implicitWidth: label.implicitWidth + 22
+    implicitHeight: label.implicitHeight + 12
+    radius: 7
+    opacity: enabled ? 1 : 0.4
+    color: area.containsMouse && enabled
+         ? Qt.alpha(danger ? Theme.red : Theme.accent, 0.25)
+         : Qt.alpha(Theme.surface, 0.8)
+    border.width: 1
+    border.color: Qt.alpha(danger ? Theme.red : Theme.text, 0.2)
+
+    Text {
+        id: label
+        anchors.centerIn: parent
+        font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 2 }
+        color: danger ? Theme.red : Theme.text
+    }
+
+    MouseArea {
+        id: area
+        anchors.fill: parent
+        hoverEnabled: true
+        cursorShape: btn.enabled ? Qt.PointingHandCursor : Qt.ArrowCursor
+        onClicked: if (btn.enabled) btn.clicked()
+    }
+}