Add start time to marker tooltip

[bruderstein]

This adds the start time to the marker tooltip in the marker chart. The information was previously only shown in the marker table view, but adding it in the chart view makes it easier to assess if one thing happened before or after another.

I've done this as <duration> @ <start time>, but happy for any suggestions as to how to make this readable & obvious.

If it's only a marker (i.e. no duration), then we only show the @ <start time>

(First PR to this repo, always happy for feedback - i missed this feature whilst reviewing some profiles)

┆Issue is synchronized with this Jira Task

[codecov]

Codecov Report

Base: 88.64% // Head: 88.64% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (b59ac29) compared to base (c05d0a3).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4468   +/-   ##
=======================================
  Coverage   88.64%   88.64%           
=======================================
  Files         284      284           
  Lines       25528    25529    +1     
  Branches     6860     6860           
=======================================
+ Hits        22629    22630    +1     
  Misses       2692     2692           
  Partials      207      207           

Impacted Files	Coverage Δ
src/components/tooltip/Marker.js	98.46% <100.00%> (+0.01%)	⬆️

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[julienw]

Just a quick note that we've noticed your patch and even talked a bit about it, but I didn't have the chance to report back.
It's still on our radar though, thanks for your patience!

[bruderstein]

No worries at all, no rush. Thanks so much for taking a look and commenting.

[julienw]

Hey @bruderstein ! Sorry for the long delay.
We discussed this and didn't like the solution a lot, but we see the value in having this information.
What do you think of adding this information as a "simple" property below the Thread/Page information?

[bruderstein]

Yes, completely agree.

I can try to implement that, but feel free to do it if it's a 2 minute thing for someone and you don't want to wait.