Change process title to flipper-runtime

Summary:
Even though node docs state

> Assigning a value to process.title might not result in an accurate label within process manager applications such as macOS Activity Monitor or Windows Services Manager.

Locally this worked for me on M1 machine. Will test on intel as well.

Reviewed By: lblasa

Differential Revision: D50228844

fbshipit-source-id: 69937ded7da259e05335df50332ea114ff566f21

desktop/flipper-server/server.js

@@ -8,5 +8,7 @@
  * @format
  */
 
+process.title = 'flipper-runtime';
+
 // eslint-disable-next-line import/no-unresolved
 require('./lib/index.js');