Consolidate shared UI assets

Move common logo and controller glyphs into `ui/views/CommonwealthOnline/shared/` and update the pause menu, main menu, and browser glyph loader to use the shared paths. Also add a sync script and update deploy/staging scripts to copy controller icons once into the shared folder.

ui/sync-shared-assets.bat

@@ -0,0 +1,18 @@
+@echo off
+setlocal EnableExtensions
+
+set "SCRIPT_DIR=%~dp0"
+set "SHARED_ICONS=%SCRIPT_DIR%views\CommonwealthOnline\shared\icons"
+
+if not exist "%SHARED_ICONS%" mkdir "%SHARED_ICONS%"
+
+echo Syncing controller icons to shared views folder...
+xcopy /Y /E /I "%SCRIPT_DIR%Icons\*" "%SHARED_ICONS%\"
+if errorlevel 1 (
+    echo Failed to copy icons from ui\Icons.
+    exit /b 1
+)
+
+echo Shared assets ready under ui\views\CommonwealthOnline\shared\
+endlocal
+exit /b 0