Merge remote-tracking branch 'origin/master'

edit: title

Update README.md

Update README.md

Update README.md

Update README.md

edit: move mapbox access token var before rest of the code

edit: update icons + add alert + add api field

edit: replace fa lib with tabler icons lib

edit: bump libs

edit: methods to store user mapbox api key

edit: use satellite image for get map image

edit: replace font awesome with tabler in app js

edit: change map style depending on user selection

edit: bump mapbox styles