Aimmy 2.4.0 Update

Changelog:

General

• Added new fancy startup window / animation
• Fixed forgotten version # update in CheckForUpdates func
• Version number for check now pulls from UI so I can hopefully avoid that again
• Deleted old Welcome.xaml files (was originally going to be used for key system which won't happen in Aimmy V2 ever)
• Fixed UpdateManager not handling newer versions (would update you back to older version before fix)
• Updated gradient effect on menu buttons (looks nicer)
• Changed aim settings button icon from Guy Walking to Target (E726->E1D2)
• Added new ThemeManager to apply theme to UI elements
• Added theme colors to the UI (tags/theme tags to mark items)
• Added color wheel element for theme color selection
• Theme color now applies to new startup animation
• Added focus display selector (pick displays without having to relaunch Aimmy on the correct display - supports up to 4 different displays)
• Updated notice bar style, fixed it's disappear timing, and updated it to use theme
• Fixed screen shots being taken even while "Collect Data While Playing" was turned off
• Adjusted FOV/Detected windows to support display selector
• Updated ConfigSaver to handle new themes
• Updated AntiRecoil to handle new themes

Optimizations / Cleanup

• Massively reduced startup lag
• Split each XAML section off into it's own XAML file to help organize the source better
• Each XAML section's CS code was split off into it's own CS as well from the Main.cs
• Each section now lazy loads to help load times and speed
• Managers now lazy load to help with performance and startup
• Cleaned up and optimized each sections CS code after moving it into it's own file
• Async fix to prevent UI freezing when grabbing PC details for about page

I'm sure there is more that I missed.. (There were +6940 and -1848 lines of code - 49 files changed)