feat(ux): add Screen Capture utility and shortcuts

- Add `kde-spectacle` to the OS package list
- Map `Print` key to Spectacle globally
- Add "Screen Capture" entry to `kiba-welcome` with productivity tip
- Enable discoverable and accessible screenshot functionality out-of-the-box

Co-authored-by: christopherfoxjr <213370400+christopherfoxjr@users.noreply.github.com>

Author: google-labs-jules[bot]

.Jules/palette.md

@@ -14,3 +14,8 @@
 
 **Learning:** In list-heavy Zenity dialogs (like keyboard shortcut help), prepending descriptive emojis to action labels significantly improves visual anchor points and scannability for users. This reduces the cognitive load required to find specific information compared to plain text lists.
 **Action:** Always prepend appropriate, high-contrast emojis to action labels in multi-column Zenity lists.
+
+## 2024-05-24 - [Shortcut Discoverability in Onboarding]
+
+**Learning:** Mapping standard hardware keys (like Print Screen) to expected utilities is only half the battle; surfacing these shortcuts within the primary onboarding tool (kiba-welcome) as "Productivity Tips" significantly increases user awareness and reduces the reliance on external documentation for basic OS functions.
+**Action:** When adding new global shortcuts, always include a corresponding "Productivity tip" in the `kiba-welcome` menu to ensure immediate discoverability.

.github/workflows/kiba.yml

@@ -298,6 +298,7 @@ jobs:
           plasma-desktop
           plasma-workspace
           plasma-workspace-wallpapers
+          kde-spectacle
           plasma-discover
           plasma-discover-backend-flatpak
 
@@ -1026,6 +1027,9 @@ jobs:
 
           [chromium.desktop]
           _launch=Meta+B,none,Chromium
+
+          [org.kde.spectacle.desktop]
+          _launch=Print,none,Spectacle
           KGLOBAL
 
           # ── kwinrc — compositing, glass, rounded corners ───────────────────────
@@ -1276,6 +1280,7 @@ jobs:
               "utilities-terminal" "terminal" "🖥️ Open Terminal" "Productivity tip: Use Meta+T to launch" \
               "system-file-manager" "files" "📂 File Manager" "Productivity tip: Use Meta+E to browse" \
               "preferences-system" "settings" "⚙️ System Settings" "Configure your desktop and hardware" \
+              "org.kde.spectacle" "screenshot" "📸 Screen Capture" "Productivity tip: Use Print to capture" \
               "dialog-information" "info" "ℹ️ System Information" "View technical system details" \
               "input-keyboard" "shortcuts" "⌨️ Keyboard Shortcuts" "View useful desktop shortcuts" \
               "help-browser" "wiki" "✨ Online Wiki" "Read the technical documentation" \
@@ -1309,6 +1314,10 @@ jobs:
                 systemsettings &
                 break
                 ;;
+              "screenshot")
+                spectacle &
+                break
+                ;;
               "info")
                 (fastfetch | zenity --text-info --title="KibaOS System Information" --font="Monospace 10" --width=600 --height=500) &
                 ;;