mobile: refine allowed group actions; inactive group indicator (#852)

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

@@ -112,6 +112,7 @@
     <string name="this_text_is_available_in_settings">Этот текст можно найти в Настройках</string>
     <string name="your_chats">Ваши чаты</string>
     <string name="contact_connection_pending">соединяется…</string>
+    <string name="group_preview_you_are_invited">вы приглашены в группу</string>
     <string name="group_connection_pending">соединяется…</string>
 
     <!-- ComposeView.kt, helpers -->
@@ -506,8 +507,8 @@
     <string name="leave_group_button">Выйти</string>
     <string name="leave_group_question">Выйти из группы</string>
     <string name="you_will_stop_receiving_messages_from_this_group_chat_history_will_be_preserved">Вы перестанете получать сообщения от этой группы. История чата будет сохранена.</string>
-    <string name="group_left_description">[покинута]</string>
     <string name="icon_descr_add_members">Пригласить участников</string>
+    <string name="icon_descr_group_inactive">Группа неактивна</string>
 
     <!-- CIGroupInvitationView.kt -->
     <string name="you_sent_group_invitation">Вы отправили приглашение в группу</string>

apps/android/app/src/main/res/values/strings.xml

@@ -112,6 +112,7 @@
   <string name="this_text_is_available_in_settings">This text is available in settings</string>
   <string name="your_chats">Your chats</string>
   <string name="contact_connection_pending">connecting…</string>
+  <string name="group_preview_you_are_invited">you are invited to group</string>
   <string name="group_connection_pending">connecting…</string>
 
   <!-- ComposeView.kt, helpers -->
@@ -508,8 +509,8 @@
   <string name="leave_group_button">Leave</string>
   <string name="leave_group_question">Leave group?</string>
   <string name="you_will_stop_receiving_messages_from_this_group_chat_history_will_be_preserved">You will stop receiving messages from this group. Chat history will be preserved.</string>
-  <string name="group_left_description">[left]</string>
   <string name="icon_descr_add_members">Invite members</string>
+  <string name="icon_descr_group_inactive">Group inactive</string>
 
   <!-- CIGroupInvitationView.kt -->
   <string name="you_sent_group_invitation">You sent group invitation</string>