1.0.0-22 - Theming, Markdown Extension, bug fixes

• Support for setting the theme of the browser from the config file. Docs
• Markdown renderer extension. @KyGost
• Fixes for menu button spelling @cinnamon-bun
• Added discord link to welcome page
• Hide URL bar when in full screen mode @KyGost
• Don't allow extensions to run on devtools protocols.