add autovoc

fonctions/getPrefix.ts

@@ -11,13 +11,16 @@ function getPrefix() {
       }
     });
 
-    db.get('SELECT prefix FROM prefix', (err: Error | null, row: any) => {
+    db.get('SELECT value FROM config WHERE name = ?', ['prefix'], (err, row: any) => {
       if (err) {
         console.error(err.message);
-        reject(err);
+        reject(err.message);
+      }
+      if (row) {
+        resolve(row.value);
+      } else {
+        resolve('!!');
       }
-      const prefix = row ? row.prefix : process.env.DEFAULT_PREFIX;
-      resolve(prefix);
     });
 
     db.close((err) => {