Correctly update full application theme on night mode change

vector/src/main/java/im/vector/riotx/features/configuration/VectorConfiguration.kt

@@ -37,11 +37,10 @@ class VectorConfiguration @Inject constructor(private val context: Context) {
             Timber.v("## onConfigurationChanged(): the locale has been updated to ${Locale.getDefault()}")
             Timber.v("## onConfigurationChanged(): restore the expected value ${VectorLocale.applicationLocale}")
             Locale.setDefault(VectorLocale.applicationLocale)
-            ThemeUtils.invalidateNightMode()
         }
         if (ThemeUtils.useDarkTheme(context) != ThemeUtils.shouldUseDarkTheme(context)) {
             Timber.v("## onConfigurationChanged(): night mode has changed")
-            ThemeUtils.invalidateNightMode()
+            ThemeUtils.invalidateNightMode(context)
         }
     }
 

vector/src/main/java/im/vector/riotx/features/themes/ThemeUtils.kt

@@ -68,8 +68,9 @@ object ThemeUtils {
         return mUseDarkTheme
     }
 
-    fun invalidateNightMode() {
+    fun invalidateNightMode(context: Context) {
         mThemeInitialized = false;
+        setApplicationTheme(context.applicationContext, getApplicationLightTheme(context), getApplicationDarkTheme(context))
     }
 
     /**