MM-61721 - adjust scheduled messages channels legend (#29254)

* MM-61721 - adjust scheduled messages channels legend

* consider the thread section of the schmsgs feature

webapp/channels/src/components/advanced_text_editor/scheduled_post_indicator/scheduled_post_indicator.tsx

@@ -34,7 +34,8 @@ export default function ScheduledPostIndicator({location, channelId, postId, rem
     // else, get those for the channel.
     // Fetch scheduled posts for the thread when opening a thread, and fetch for channel
     // when opening from center channel.
-    const id = location === Locations.RHS_COMMENT ? postId : channelId;
+    const isThread = location === Locations.RHS_COMMENT;
+    const id = isThread ? postId : channelId;
     const scheduledPostData = useSelector((state: GlobalState) => showChannelOrThreadScheduledPostIndicator(state, id));
 
     const currentTeamName = useSelector((state: GlobalState) => getCurrentTeam(state)?.name);
@@ -77,10 +78,18 @@ export default function ScheduledPostIndicator({location, channelId, postId, rem
 
     // display scheduled post count if there are more than one scheduled post
     if (scheduledPostData.count > 1) {
-        scheduledPostText = (
+        scheduledPostText = isThread ? (
             <FormattedMessage
-                id='scheduled_post.channel_indicator.multiple'
-                defaultMessage='You have {count} scheduled messages.'
+                id='scheduled_post.channel_indicator.multiple_in_thread'
+                defaultMessage='{count} scheduled messages in thread.'
+                values={{
+                    count: scheduledPostData.count,
+                }}
+            />
+        ) : (
+            <FormattedMessage
+                id='scheduled_post.channel_indicator.multiple_in_channel'
+                defaultMessage='{count} scheduled messages in channel.'
                 values={{
                     count: scheduledPostData.count,
                 }}
@@ -98,7 +107,7 @@ export default function ScheduledPostIndicator({location, channelId, postId, rem
             <Link to={scheduledPostLinkURL}>
                 <FormattedMessage
                     id='scheduled_post.channel_indicator.link_to_scheduled_posts.text'
-                    defaultMessage='See all scheduled messages'
+                    defaultMessage='See all.'
                 />
             </Link>
         </div>

webapp/channels/src/i18n/en.json

@@ -4869,8 +4869,9 @@
   "scheduled_post.action.edit": "Edit scheduled post",
   "scheduled_post.action.reschedule": "Reschedule post",
   "scheduled_post.action.send_now": "Send now",
-  "scheduled_post.channel_indicator.link_to_scheduled_posts.text": "See all scheduled messages",
-  "scheduled_post.channel_indicator.multiple": "You have {count} scheduled messages.",
+  "scheduled_post.channel_indicator.link_to_scheduled_posts.text": "See all.",
+  "scheduled_post.channel_indicator.multiple_in_channel": "{count} scheduled messages in channel.",
+  "scheduled_post.channel_indicator.multiple_in_thread": "{count} scheduled messages in thread.",
   "scheduled_post.channel_indicator.single": "Message scheduled for {dateTime}.",
   "scheduled_post.channel_indicator.with_other_user_late_time": "You have {count, plural, =1 {one} other {#}} <a>scheduled {count, plural, =1 {message} other {messages}}</a>.",
   "scheduled_post.delete_modal.body": "Are you sure you want to delete this scheduled post to <strong>{displayName}</strong>?",