Change You left the group string to You left to also fit for broadcast channels

Author: Hocuri

src/chat/chat_tests.rs

@@ -373,7 +373,7 @@ async fn test_member_add_remove() -> Result<()> {
     // Alice leaves the chat.
     remove_contact_from_chat(&alice, alice_chat_id, ContactId::SELF).await?;
     let sent = alice.pop_sent_msg().await;
-    assert_eq!(sent.load_from_db().await.get_text(), "You left the group.");
+    assert_eq!(sent.load_from_db().await.get_text(), "You left.");
 
     Ok(())
 }

src/stock_str.rs

@@ -285,7 +285,7 @@ pub enum StockMessage {
     #[strum(props(fallback = "Member %1$s removed by %2$s."))]
     MsgDelMemberBy = 131,
 
-    #[strum(props(fallback = "You left the group."))]
+    #[strum(props(fallback = "You left."))]
     MsgYouLeftGroup = 132,
 
     #[strum(props(fallback = "Group left by %1$s."))]
@@ -685,7 +685,7 @@ pub(crate) async fn msg_group_left_remote(context: &Context) -> String {
     translated(context, StockMessage::MsgILeftGroup).await
 }
 
-/// Stock string: `You left the group.` or `Group left by %1$s.`.
+/// Stock string: `You left.` or `Group left by %1$s.`.
 pub(crate) async fn msg_group_left_local(context: &Context, by_contact: ContactId) -> String {
     if by_contact == ContactId::SELF {
         translated(context, StockMessage::MsgYouLeftGroup).await