Improve Ada printing behaviour

[sjd210]

• Fixed behaviour from the redesign causing the [With hints | Without hints] to overlap with the share button in an unreadable way

• Changed the code snippet "View on GitHub" text to the GitHub link itself when printing

• Show tab titles above all individual tabs when printing. The original request was for codeTabs specifically, but having tested different options I think this makes sense for all tabs on both sites (helps for a question like sort_31_v2 which isn't using codeTabs (or even something like the About Us page, if you really feel like it)). I also checked viability of doing similar work for our dropdown and button <Tab> styles, but they're less straightforward and don't tend to be used on printable pages anyway.

  Note: I found it was clearer to show all titles with the selected tab highlighted rather than just the name of the selected tab by itself. It helps show that the tabs are collected together in a block.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 40.64%. Comparing base (12d1fc0) to head (5704484).
Report is 136 commits behind head on redesign-2024.

Additional details and impacted files

@@                Coverage Diff                @@
##           redesign-2024    #1449      +/-   ##
=================================================
- Coverage          40.75%   40.64%   -0.12%     
=================================================
  Files                493      494       +1     
  Lines              21991    22031      +40     
  Branches            7309     6517     -792     
=================================================
- Hits                8963     8955       -8     
- Misses             12403    13039     +636     
+ Partials             625       37     -588     

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[axlewin]

Looks good. The only issue I can see is that this adds some unnecessary padding above the first code snippet in each section:

Before:

After:

[sjd210]

Oh, nice spot. In which case, I'll bring the padding for the whole heading section more in-line with how it is on the non-print site. It makes it all more consistent this way. (In fact, I think this is what I was trying to do with that rogue mb-2, but clearly I'd forgotten about it)