PaleMoon contrast, SVG optimize, small fixes

[ronso0]

• BPM Tap button now spans BPM and rate% (and matches previous hover highlight)
• picking up @Holzhaus's inspiration we now have a pale logo
  
  

[ronso0]

• Windows: remove useless dotted focus border from effect selector and AutoDJ mode selector

[Holzhaus]

Thanks.

Just a minor note: I think it would look better if there were less different shades of grey in the toolbar. Could we use #444444 or #A89A8C instead of #746658 (like the battery icon and the clock)?

[ronso0]

I'll test that

[ronso0]

the small logo is now painted d like the charged battery, please take a look.

• Windows: remove useless dotted focus border from effect selector and AutoDJ mode selector

nice to have, doesn't block this PR though.

[Holzhaus]

Awesome, thank you!