refactor: obj_fleet ui from Draw to Draw GUI Event

[jhillacre]

• Move to "Draw GUI", so draw_* functions are in window space instead of viewport space.
• Remove all zooming logic as the UI no longer scales with the viewport.
• Implemented variables for UI colors, window dimensions, and padding to enhance code clarity and control.
• Centralized alignment and positioning in UI drawing maintainability and future expansion to scale across different window sizes.
• Optimized fleet statistics display to adjust to window changes dynamically.
• Allow toggling of zoom pre-battle.
• Remove duplicate start=0 from obj_fleet Create event.

[jhillacre]

I mentioned in Discord, but there is an issue where some screen centring code works windowed but not full screen; it seems related to my monitor having a different ratio. Screens other than the fleet screen do not have this issue. So, this PR works but doesn't look as good as it should fullscreen.

[jhillacre]

I mentioned in Discord, but there is an issue where some screen centring code works windowed but not full screen; it seems related to my monitor having a different ratio. Screens other than the fleet screen do not have this issue. So, this PR works but doesn't look as good as it should fullscreen.

this is fixed now in ee3fa50fd7e9ca5403cb5e5eecb25a02fd56affb