Resize window, transport mouse, and more.

[EarlOrlando]

This pull request addresses the following improvements:

• The visible window is now resizable so that it can occupy as much space as the user wants, regardless of the resolution of the virtual display. This is helpful to optimize the size of the window in the physical display. This feature addresses issues https://github.com/Stengo/DeskPad/issues/11 and https://github.com/Stengo/DeskPad/issues/2.
• DeskPad captures the clicks over the visible window, and when that happens, the coordinates are converted to the coordinates of the virtual display, and the cursor is moved. This feature addresses issues https://github.com/Stengo/DeskPad/issues/12 and https://github.com/Stengo/DeskPad/issues/13. This feature is configurable through a new checkbox in the menu.
• Added more standard display resolutions
• Issue https://github.com/Stengo/DeskPad/issues/6 is partially addressed. The lacking feature is to detect if the cursor is on the edge of the virtual cursor. In that case, we want to move the cursor to the display where the visible window is shown in the position corresponding to the edge of the window.

[EarlOrlando]

@Stengo, please look at this pull request when you have time. Feel free to reach out if needed. Thanks in advance.

[acrylicus]

Amazing! Love your work:)

[EarlOrlando]

I genuinely appreciate the effort you've put into reworking my PR! It was incredibly enlightening to see how the same result could be achieved with a much simpler approach, leading to a more robust architecture. This experience has been a valuable learning curve for me, nurturing a strong interest in dedicating more time to Swift and understanding the Redux architecture. As someone from a Firmware background, this is an entirely new world for me.

One final note: the concept of enabling or disabling window resizing, combined with custom resolutions, provides a practical means to lock in the desired window size. I assume users hardly ever change it once it's initially set up (it could actually be annoying if the window keeps changing its size by mistake, resulting in an unwanted fuzzy image).

Personally, I rely on the Rectangle app to organize my windows on my Ultrawide Monitor. I use keyboard shortcuts to position my windows (usually arranging them in the center, left half, or right half), and having the DeskPad window size locked helps maintain the 1:1 window-to-pixel ratio when re-positioning it. I felt it was worth mentioning.

However, similar to the custom resolutions, this is something I can manage in my fork.

[EarlOrlando]

I reset my branch to yours. You wrote the code so the credit is yours :) Feel free to approve and merge!

[Stengo]

Just released v1.2 with all of these changes 🚀 Once again, thank you so much for taking the initiative!