Added support for stock screeners

• Added support for stock screeners (see #121)

Fixed a booboo introduced with the previous patch

• Fixed a booboo introduced with the previous patch

Updated css for watchlist menu

• Updated css for watchlist menu

Updated css for watchlist menu

• Updated css for watchlist menu

Automatically update ChromeDriver

• Added the option to automatically update ChromeDriver.
  Add the following to the [webdriver] section in your kairos.cfg to enable it (see _kairos.cfg):

auto_update = true

• Updated CSS

Updated css for watchlist menu

• Updated css for watchlist menu (see #117)

Updated selectors and code to reflect changes on TV's website

Updated selectors and code to reflect changes on TV's website.
See also issue #116.

• Updated selectors.
• Changed how watchlists are updated. Watchlists of the same name are now removed prior to creating a new one of the same name.
• Changed how checkboxes work because of changes in DOM for the  alert dialog as well for the input/properties dialog of strategies.
• Added a warning to gracefully catch setting a webhook on the alert dialog while 2fa is disabled.

Updated data window css

The data window and object tree tabs joined. Updated css to reflect that change. See #114.

Alert dialog message fix

• updated selectors for create alert dialog to reflect changes to expiration date and sound notification options

Reinstated webdriver path as fall back

• Added webdriver path as a fall back to Selenium-Manager
• pyvirtualdisplay is only needed on Linux when not in headless mode
• Added coloredlogs to dependencies
• Removed python3-Xlib from dependencies