Unify Naming Structure for Telemetry Events

[dedavis6797]

The naming conventions for telemetry across the different utilities is inconsistent. A unified structure will make it easier to track and organize events going forward.

Proposed Convention: Microsoft.PowerToys.[utility]_[event]

Ex:
Microsoft.PowerToys.SvgFileHandlerLoaded -> Microsoft.PowerToys.FileExplorer_SvgFileHandlerLoaded

Also, we should make sure [event] has a clear, easily understood label. I wouldn't know what the difference is between Microsoft.PowerToys.ImageResizer_Invoked and Microsoft.PowerToys.ImageResizer_InvokedRet as they're currently labeled without having to dig through the code.

Checklist:

• Color Picker ([telemetry][ColorPicker] add event name support #10476)
• FancyZones
• File Explorer add-ons
• Image Resizer
• Keyboard Manager
• Power Rename
• PowerToys Run
  • PowerToys Run - Plugin Manager
• Shortcut Guide
• Runner
• Installer

[enricogior]

In 0.35 we added the functionality to allow to set the event name in C# projects and we used it for the Color Picker events.
In 0.37 we will apply it to the other modules.