small improvements and a "bugfix" | context menus

[BUGO07]

when opening the context menu, if you were holding down the right click and then hovered over a context menu option, when you'd release the right click it would execute that context menu action, that's been fixed by making the context menu spawn trigger be Pointer<Up> instead of Pointer<Down>, and also made the context menu options to trigger only on left click (primary button)

[BUGO07]

this pr also makes it so when a context menu is open and you try to open another, it closes the currently open one and opens the new one. previously you would need to right click twice for this (once to close the current one and the second time to open the new one)

[tim-blackbird]

All of this was designed on purpose by me. Context menus generally behave this way.
I can't confirm it works this way on MacOS, but it does for Linux KDE and VS Code
edit:
Okay nevermind, we are both right. It's OS specific. On Linux KDE both the native context menu and the one in VS Code behave this way, but on Windows it functions like you describe.

So we need a way to decide how the context menu should behave on different platforms.

[BUGO07]

I didn't know. I think it can be a bit annoying when you're moving the cursor while you right click and it does an action, especially since there's delete buttons in the context menus

[BUGO07]

So we need a way to decide how the context menu should behave on different platforms.

I think we can do that with preferences after we get there