Internal Design Overhaul: ToastView

[aleab]

Internal Design Overhaul: ToastView

ToastView is one of the other monsters of Toastify codebase: 1200+ LOC. This is the code-behind of the Toast view and entry point of the whole App. It currently does the following:

• Initializes the Toast window.
• Initializes the tray icon.
• Starts the Spotify class by calling the Spotify.StartSpotify() method, which also launches the Spotify client if it's not already running.
• Has a useless LoadPlugins() method, legacy from the original project. Everything related to plugins in the project should honestly just be removed!
• Handles updates of the Toast: ChangeCurrentSong, UpdateToastText, ...
• Handles its own visibility with FadeIn, FadeOut, ShowToastPreview, ResetPositionIfOffScreen, ...

I still have no ideas on how to refactor this.