Fix switch theme issue, and white field issue (#2599, #2528)

Remove some workarounds. I cannot reproduce the bug of signout which does not destroy the HomeActivityViewModel...

CHANGES.md

@@ -16,6 +16,8 @@ Bugfix 🐛:
  - Hiding membership events works the exact opposite (#2603)
  - Tapping drawer having more than 1 room in notifications gives "malformed link" error (#2605)
  - Initial sync is not retried correctly when there is some network error. (#2632)
+ - Fix switch theme issue, and white field issue (#2599, #2528)
+
 Translations 🗣:
  -
 

vector/src/main/AndroidManifest.xml

@@ -82,8 +82,7 @@
         </activity-alias>
 
         <activity
-            android:name=".features.home.HomeActivity"
-            android:launchMode="singleTask" />
+            android:name=".features.home.HomeActivity" />
         <activity
             android:name=".features.login.LoginActivity"
             android:launchMode="singleTask"

vector/src/main/java/im/vector/app/features/MainActivity.kt

@@ -79,8 +79,6 @@ class MainActivity : VectorBaseActivity<FragmentLoadingBinding>(), UnlockedActiv
 
             intent.putExtra(EXTRA_ARGS, args)
             activity.startActivity(intent)
-            // Ensure all the Activities are destroyed, it seems that the intent flags are not enough now.
-            activity.finishAffinity()
         }
     }