Remove deprecated one-shot scripts and update first-boot configuration for improved provisioning</message>

<message>Delete obsolete one-shot scripts for setting screen rotation and wallpaper, as well as related Python and shell scripts. Update the first-boot configuration to streamline the provisioning process by removing references to these scripts. This cleanup enhances maintainability and focuses on the essential steps required for the first boot experience, ensuring a more efficient setup for users.

emmc-provisioning/cloud-init/fileserver/panel-theme.css

@@ -0,0 +1,42 @@
+/* Minimal dark taskbar – flat, touch-friendly
+ * Colors match Adwaita-dark (window bg #242424) so taskbar fits dark mode.
+ * Icon theme PiXtrix (start-here) set in gtk-3.0/settings.ini.
+ */
+
+window {
+  background-color: transparent;
+}
+
+/* Flat bar: Adwaita-dark window bg so theme is consistent */
+window box {
+  background-color: #242424;
+  border-radius: 0;
+  margin: 0;
+  padding: 4px 8px;
+  border: none;
+  box-shadow: none;
+}
+
+/* Touch-friendly buttons: min 32px, clear hit area */
+button {
+  background: transparent;
+  border: none;
+  border-radius: 4px;
+  padding: 6px;
+  min-width: 32px;
+  min-height: 32px;
+  color: #e0e0e0;
+}
+
+button:hover {
+  background: rgba(255, 255, 255, 0.08);
+}
+
+button:active {
+  background: rgba(255, 255, 255, 0.12);
+}
+
+label {
+  color: #e0e0e0;
+  font-size: 11pt;
+}