Add call video navigation labels

tools/chatgui-android/app/src/main/res/values-ru/strings.xml

@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="call_settings">Настройки звонка</string>
+    <string name="call_controls">Управление звонком</string>
+    <string name="call_video_local">Своё видео</string>
+    <string name="call_video_remote">Видео собеседника</string>
     <string name="call_video_resolution">Разрешение</string>
     <string name="call_video_codec">Кодек</string>
     <string name="call_video_auto">Авто (H.265 → H.264)</string>

tools/chatgui-android/app/src/main/res/values/strings.xml

@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="call_settings">Call settings</string>
+    <string name="call_controls">Call controls</string>
+    <string name="call_video_local">Your video</string>
+    <string name="call_video_remote">Peer video</string>
     <string name="call_video_resolution">Resolution</string>
     <string name="call_video_codec">Codec</string>
     <string name="call_video_auto">Auto (H.265 → H.264)</string>