August refactor

• Complete code refactor - removed almost 2000 lines of code/scripts
• Removed final remnants of pamac support
• Brought most of the bash logic in-line, removing the separate scripts
• Changed shell switcher to a combobox
• Added apply buttons
• Added the ability to choose a DNS service
• Added System Information page for convenient access to inxi data
• Added diagnostics page
• Created a more granular way to reset configs
• Embedded the icons into the application for a more consistent experience