Adding venue toggles and cleaning up icons

Author: KevinSchildhorn

android/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,7 +1,7 @@
 {
   "images" : [
     {
-      "filename" : "dclondon24-icon.jpg",
+      "filename" : "dcLondon24-Icon.jpg",
       "idiom" : "universal",
       "platform" : "ios",
       "size" : "1024x1024"

android/src/main/res/drawable/ic_splash_screen.xml

@@ -1,7 +1,7 @@
 {
   "images" : [
     {
-      "filename" : "ic_splash_screen.svg",
+      "filename" : "London 24-Splash screen.svg",
       "idiom" : "universal"
     }
   ],