feat(rofi): fullscreen two-button layout for the screenshot menu

The screenshot menu (Mod+Shift+S) borrowed menu.rasi, a small list
box, so its two options were small glyphs in a narrow column.
screenshot.rasi gives each option half the monitor on the scrim,
centred vertically by spacers because rofi sizes a row by its text.

rofi cannot size a font by percentage, so the calling script passes
the glyph size with -theme-str, derived from the focused monitor and
aware of rotated outputs; the size in the theme is only a fallback.
install.sh links the new file with the other layouts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

0 files changed, 0 insertions, 0 deletions