Restructure .gitignore
Add svg-spinners and configure the Grunt copy task
Add custom (noir) version of SVG spiners
Add SCSS for the spinner
Add function to show and hide the loading spinners
Implement show/hide function in apiCall()
New spinner base
Add wait cursor as soon as the spinner is visible
Specify submit button in settings modal
Remove unused id's
sendMessage() function + Implementation
Remove unused SCSS block
Rearrange some functions