feat: move Settings out of Files into its own searchable app with categories

scripts/copy_icons.sh

@@ -74,6 +74,15 @@ ICONS=(
     "status/symbolic/battery-level-100-charged-symbolic.svg"
     "status/symbolic/battery-missing-symbolic.svg"
     "apps/symbolic/web-browser-symbolic.svg"
+    # Settings app sidebar (categories + search)
+    "apps/symbolic/org.gnome.Settings-appearance-symbolic.svg"
+    "apps/symbolic/org.gnome.Settings-network-symbolic.svg"
+    "apps/symbolic/preferences-system-time-symbolic.svg"
+    "apps/symbolic/system-users-symbolic.svg"
+    "status/symbolic/security-high-symbolic.svg"
+    "categories/symbolic/preferences-system-symbolic.svg"
+    "categories/symbolic/applications-system-symbolic.svg"
+    "actions/symbolic/system-search-symbolic.svg"
     # Scalable (colorful) icons for app menu
     "apps/scalable/utilities-terminal.svg"
     "apps/scalable/system-file-manager.svg"

scripts/install_apps.sh

@@ -47,6 +47,7 @@ APPS=(
     "screenshot|apps/scalable/gnome-screenshot.svg"
     "texteditor|apps/scalable/accessories-text-editor.svg"
     "files|apps/scalable/system-file-manager.svg"
+    "settings|categories/scalable/preferences-system.svg"
     "mandelbrot|apps/scalable/applications-science.svg"
 )