add tea set token as an alternative to tea set key

Run periodic repo update in background to not block workflow usage.

• fix tea home command
• Variable quick_open = true is again honored

• Port to Python3 by adapting TribuneX/alfred-gitlab
• Use slingamn/mureq for web requests

Kudos to TribuneX/alfred-gitlab for porting the Alfred workflow module to Python3!

• Revert back to /repos/search endpoint as /user/repos endpoint does not list all repos a user has access to

• Fix pagination and with this actually scrape all available repos. By default per_page=100 is used in every API call resulting in two scraped repos only. Before, more were assumed and hence not all pages were processed.

• Use the /user/repos API endpoint instead of /repos/search
• Always require an Access Token
• tea reset now accordingly deletes the password

Initial release