feat: prompt variables from suggestions

backend/data/config.json

@@ -26,6 +26,10 @@
 			{
 				"title": ["Overcome procrastination", "give me tips"],
 				"content": "Could you start by asking me about instances when I procrastinate the most and then give me some suggestions to overcome it?"
+			},
+			{
+				"title": ["Grammar check", "rewrite it for better readability "],
+				"content": "Check the following sentence for grammar and clarity: \"[sentence]\". Rewrite it for better readability while maintaining its original meaning."
 			}
 		]
 	}