Suppress remaining eslint errors

These two seem like bugs but are unclear to me how to fix, so I've added
FIXMEs.

/puter/packages/backend/src/routers/kvstore/clearItems.js
  41:32  error  'DB_MODE_WRITE' is not defined  no-undef

/puter/packages/backend/src/routers/whoami.js
  104:35  error  'db' is not defined  no-undef

packages/backend/src/routers/kvstore/clearItems.js

@@ -38,6 +38,8 @@ module.exports = eggspress('/clearItems', {
     }
 
     const svc_mysql = req.services.get('mysql');
+    // TODO: Check if used anywhere, maybe remove
+    // eslint-disable-next-line no-undef
     const dbrw = svc_mysql.get(DB_MODE_WRITE, 'kvstore-clearItems');
     await dbrw.execute(
         `DELETE FROM kv WHERE user_id=? AND app=?`,

packages/backend/src/routers/whoami.js

@@ -101,6 +101,8 @@ WHOAMI_POST.post('/whoami', auth, fs, express.json(), async (req, response, next
     if(req.query.return_desktop_items === 1 || req.query.return_desktop_items === '1' || req.query.return_desktop_items === 'true'){
         // by cached desktop id
         if(req.user.desktop_id){
+            // TODO: Check if used anywhere, maybe remove
+            // eslint-disable-next-line no-undef
             desktop_items = await db.read(
                 `SELECT * FROM fsentries
                 WHERE user_id = ? AND parent_uid = ?`,