refining comments and adding exemptLabels

Author: ahmedsalah196

.github/stale.yml

@@ -12,21 +12,21 @@ onlyLabels: []
 
 # Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
 exemptLabels:
-  Feature Request
+  - Feature Request
+  - WIP
+  - Bug
 
 # Label to use when marking as stale
 staleLabel: Inactive
 
 # Comment to post when marking as stale. Set to `false` to disable
 markComment: >
-  This issue has been automatically marked as stale because it has not had
-  recent activity. It will be closed if no further activity occurs. Thank you
+  This issue has been automatically marked as stale due to inactivity. It will be closed if no further activity occurs. Thank you
   for your contributions.
 
 # Comment to post when closing a stale Issue or Pull Request.
 closeComment: >
-  This issue has been automatically closed because it has not had
-  recent activity
+  This issue has been automatically closed due to inactivity.
 
 # Limit the number of actions per hour, from 1-30. Default is 30
 limitPerRun: 1