Add mobile dark mode and user setting (#468)

* styling light and dark theme

* Icon topbar

* Fixed app bar title dark theme

* Fixed issue with getting thumbnail for things

* Refactor sharing page

* Refactor scroll thumb

* Refactor chip in auto  backup indiation button

* Refactor sharing page

* Added theme toggle

* Up version for testflight build

* Refactor backup controller page

* Refactor album selection page

* refactor album pages

* Refactor gradient color profile header

* Added theme switcher

* Register app theme correctly

* Added locale to the app

* Added translation key

* Styling for bottomsheet colors

* up server version

* Fixed font size

* Fixed overlapsed sliverappbar on photos screen

mobile/lib/modules/search/ui/thumbnail_with_info.dart

@@ -26,7 +26,7 @@ class ThumbnailWithInfo extends StatelessWidget {
       child: Padding(
         padding: const EdgeInsets.only(right: 8.0),
         child: SizedBox(
-          width: MediaQuery.of(context).size.width / 2,
+          width: MediaQuery.of(context).size.width / 3,
           child: Stack(
             alignment: Alignment.bottomCenter,
             children: [
@@ -58,7 +58,7 @@ class ThumbnailWithInfo extends StatelessWidget {
                     style: const TextStyle(
                       color: Colors.white,
                       fontWeight: FontWeight.bold,
-                      fontSize: 16,
+                      fontSize: 14,
                     ),
                   ),
                 ),