styled buttons to be bolder
updated config UI buttons save with saving icon
cleaned up main activity tab to be responsive
Merge branch 'upstream-develop' into refactor/ui-styles

Conflicts:
	app/styles/main.css
	app/views/home/main-activity.html
resolved conflict after merging upstream
added animation to save config buttons
Merge branch 'upstream-develop' into refactor/ui-styles

Conflicts:
	app/styles/main.css
Merge pull request #216 from jofomah/refactor/ui-styles

Refactor/ui styles