Fix Flipper lints #3

Summary: More error chaining and some error logging.

Reviewed By: lblasa

Differential Revision: D30932120

fbshipit-source-id: de0da698a24b04312b4df3c59b02d8d85d2d7e19

desktop/app/src/fb-stubs/checkForUpdate.tsx

@@ -65,6 +65,8 @@ export async function checkForUpdate(
             console.log('Skipping version check on non-authenticated network.');
             return {kind: 'up-to-date'};
           }
+          // Good use of nesting.
+          // eslint-disable-next-line promise/no-nesting
           return res.json().then(parseResponse);
         default:
           const msg = `Server responded with ${res.statusText}.`;

desktop/app/src/plugin.tsx

@@ -285,6 +285,7 @@ export class FlipperPlugin<
   }
 
   get device() {
+    // eslint-disable-next-line node/no-sync
     return this.realClient.deviceSync;
   }