* [feature] Make instance thumbnail configurable via admin panel
* log db errors in InstanceToAPIInstance
* only update instance in db if necessary
* start adding tests
* finish test
* re-add eslint
* fix oauth url getting too long
* actually attach single emoji get and delete routes
* basic emoji details + deletion using rtk query
* refactor emoji upload to rtk query
* clean up old redux api+reducers for custom emoji
* fix validation order
* refactor custom emoji form fields
* remove unused requires
* cleanup, fix most eslint errors
* more small eslint fixes
* fix max emoji size
* tiny bit of function documentation
* re-structure bundler, settings panel files
* add more info logging
* tidy up CSS syntax errors
* split into lib/ files
* livereloading server
* fix factor function for production builds
* remove testing console.log
* default to production env, saves 300kb bundle size
