UI: Adjust input mapping view (#4866)

* refactor: clean up controller settings ui

- Remove inconsistencies between left and right side
- Use style to set ToggleButton properties (since they are all the same)
- Move topmost controller settings from one line to 2x2 grid for improved clarity
- Properly adjust borders, text widths, etc. to neighboring elements to eliminate misaligned visual lines

* fix: merge issues

* fix: prevent sliders from jumping by giving text block fixed width

* refactor: add more separators and increase margin

* refactor: center deadzone and range descriptions

* refactor: move rumble border top margin to -1 and prevent double border

* refactor: remove margins & double borders + switch profile & input selection

* style: apply suggestions from code review

Co-authored-by: Ac_K <Acoustik666@gmail.com>

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Co-authored-by: Ac_K <Acoustik666@gmail.com>