Moved app message functions under MessageDB class

for hinting

dbutil.py

@@ -2,22 +2,24 @@ import json
 import os
 import sqlite3
 
-def add_application_msg(msg_id: str, author_id: str, guild_id: str) -> None:
-    data = (msg_id, author_id, guild_id)
-    con = sqlite3.connect("applications.db")
-    cur = con.cursor()
-    cur.execute("INSERT INTO app_msg_db VALUES (?, ?, ?)", data)
-    con.commit()
 
-def get_application_msg(msg_id: str):
-    con = sqlite3.connect("applications.db")
-    cur = con.cursor()
-    cur.execute(f"SELECT user_id, guild_id FROM app_msg_db WHERE msg_id={msg_id}")
-    user_id, guild_id = cur.fetchone()
-    return user_id, guild_id
+class MessageDB():
+    def add_application_msg(msg_id: str, author_id: str, guild_id: str) -> None:
+        data = (msg_id, author_id, guild_id)
+        con = sqlite3.connect("applications.db")
+        cur = con.cursor()
+        cur.execute("INSERT INTO app_msg_db VALUES (?, ?, ?)", data)
+        con.commit()
 
-def remove_application_msg(msg_id: str) -> None:
-    con = sqlite3.connect("applications.db")
-    cur = con.cursor()
-    cur.execute(f"DELETE FROM app_msg_db WHERE msg_id={msg_id}")
-    con.commit()
+    def get_application_msg(msg_id: str) -> tuple[str, str]:
+        con = sqlite3.connect("applications.db")
+        cur = con.cursor()
+        cur.execute(f"SELECT user_id, guild_id FROM app_msg_db WHERE msg_id={msg_id}")
+        user_id, guild_id = cur.fetchone()
+        return user_id, guild_id
+
+    def remove_application_msg(msg_id: str) -> None:
+        con = sqlite3.connect("applications.db")
+        cur = con.cursor()
+        cur.execute(f"DELETE FROM app_msg_db WHERE msg_id={msg_id}")
+        con.commit()