Make RM look nice

[michikrug]

Description

This is a plain cosmetic PR that optimizes display of menu, marker labels and gym sidebar.
It already includes the changes proposed by #2476 and #2488. (Thanks to the authors!)

Motivation and Context

RM looks kinda messy currently.
The style ideas are nice, but poorly applied.
E.g.:

• the labels did not use the same font as the rest of the page
• inconsistent underlining
• strange paddings / margins and font sizes
• bad alignment
• not the best responsive changes
• ...

Thus, I optimized a LOT of styles to make RM look nice on desktop and mobile.

How Has This Been Tested?

Own instance.

Screenshots (if appropriate):

Old:

New:

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[sebastienvercammen]

To properly credit authors, pending merge of #2476 and #2488. We don't allow "combo PRs" which merge the work of other PRs that came before it. This PR has more than just the combo, so it can be rebased after those two are merged.

[michikrug]

I'm totally fine with that.

[michikrug]

Added some screenshots of raids.

[michikrug]

Also added some screenshots of Pokémon label.