fixed static_dir of modules; omit hidden files in modules_enabled directory
added tor actions: is-running, start, stop; display tor status at tor app page (enabling/disabling will be integrated later)
login page: auto-focus username input field
refactored first boot module; user is now logged in automatically after an account is created
Move basic Tor info to sidebar.
Reorganize Tor module template.
Display Tor hidden service configuration on Tor page.
Currently assumes that there is no more than 1 hidden service.
Enable/disable Tor hidden service.
Currently only supports a single hidden service for HTTP/HTTPS.
Add Tor form to enable/disable hidden service.
Add comment to mark end of Plinth Hidden Service configuration block.
Update actions/tor to Python3 and minor other updates

- Update to use Python3

- Use os.path.join to combine parts of path

- Fix documentation strings

- Use single quotes for regular strings merely for consistency

- Minor refactorings
Minor updates to Tor service
Print debug message about static directories served
Minor styling changes in first boot module