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/views/CommonwealthOnline/browser/components/controller-glyphs.js

@@ -21,7 +21,7 @@
 
   var PLATFORMS = {
     Xbox: {
-      base: "./assets/icons/Xbox/",
+      base: "../shared/icons/Xbox/",
       files: {
         a: "T_X_A_White_Alt.png",
         b: "T_X_B_White_Alt.png",
@@ -32,7 +32,7 @@
       }
     },
     Playstation: {
-      base: "./assets/icons/Playstation/",
+      base: "../shared/icons/Playstation/",
       files: {
         a: "T_P5_Cross_Alt.png",
         b: "T_P5_Circle_Alt.png",
@@ -43,7 +43,7 @@
       }
     },
     Switch: {
-      base: "./assets/icons/Switch/",
+      base: "../shared/icons/Switch/",
       files: {
         a: "T_S_A_Alt.png",
         b: "T_S_B_Alt.png",