Add Bottom Left and Bottom Right overlay positions

[msrcreativeprojects]

I have been using Fluid Voice as my primary dictation tool, and I would love a little more control over where the recording overlay sits.

Right now, the bottom overlay is centered.

On a wide screen, I would prefer the option to put it in either the bottom left or bottom right so it stays visible but out of the way of the apps and controls I am working in.

Could you add Bottom Left and Bottom Right alongside the existing Top and Bottom options?

Both options should use the active display, keep a small safe-area margin from the edge, and continue to respect the existing Bottom Offset setting.

I do not think top-left or top-right is especially necessary, but the two bottom corners would make the overlay much easier to place around different workflows.

This is a narrower alternative to #284. Rather than arbitrary draggable placement and saved coordinates, this would provide two predictable fixed positions that cover a lot of the same practical benefit with much less complexity.