Delete statuses from cache and fix auto-refresh when posting

mastodon/src/main/java/org/joinmastodon/android/api/CacheController.java

@@ -233,6 +233,12 @@ public class CacheController{
 		});
 	}
 
+	public void deleteStatus(String id){
+		runOnDbThread((db)->{
+			db.delete("home_timeline", "`id`=?", new String[]{id});
+		});
+	}
+
 	public void clearRecentSearches(){
 		runOnDbThread((db)->db.delete("recent_searches", null, null));
 	}