Update note breakpoints to show more info at smaller sizes

The following discussion from !11701 (merged) should be addressed:

• @annabeldunstone started a discussion: (+3 comments)

  I like what you've done here, but multiplying the breakpoint widths by 2 results in some pretty huge breakpoints. For example, the avatars and names disappear at 1524px, which I think is too large. Is there still room for everything if we decrease this number? Maybe 1.5?

  The screen is still quite wide here, but valuable info has been removed:
  

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  Should we instead increase the breakpoints at which that information disappears for normal notes which flows through to parallel notes.

  Same things happens on normal notes

  

cc @MadLittleMods

changed title from Follow-up from "Apply responsive note styles to parallel diffs" to Update note breakpoints to show more info at smaller sizes

changed the description

mentioned in commit d7d01bf3

mentioned in merge request !11841 (merged)

closed via merge request !11841 (merged)

mentioned in merge request !14785