Fedora installer, cleanup and screenshots

- install.sh rewritten for Fedora: dry-run, --check, backups, oh-my-zsh, lazygit, swappy
- outputs-setup.sh (monitor layout for new hardware) and doctor.sh (health check)
- screenshot.sh: region / full / window / scroll / last / edit (swappy), saved and copied
- remove waybar, swaync, dunst, rofi and their helper scripts, wallpaper picker, mirror.sh
- wallpapers handled by DMS; keep only the favourite one
- 00-session.conf for portals; swayfx-only layer rules split into 21-dms-effects.conf

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

.config/sway/cheatsheet.sh

@@ -1,6 +1,5 @@
 #!/bin/bash
-# Shows all sway keybindings in rofi
+# Shows all sway keybindings in the DMS picker (type to filter, Esc to close)
 cat ~/.config/sway/config ~/.config/sway/config.d/*.conf | grep -E '^\s*bindsym' | grep -v -- '--locked' \
   | sed -E 's/^\s*bindsym\s+//; s/(--[a-z-]+(=[^ ]+)?\s+)+//; s/\$mod/Super/g; s/^(\S+)\s+/\1\t→ /' \
-  | column -t -s $'\t' | rofi -dmenu -i -p "Keys" -theme ~/.config/rofi/catppuccin.rasi \
-    -theme-str 'window {width: 900px;} listview {lines: 14;} entry {placeholder: "Filter...";}' >/dev/null
+  | column -t -s $'\t' | dms dmenu >/dev/null