Move the IPC tracks right below their threads during the initial load

[canova]

Fixes #3890.

Previously the IPC tracks were always appearing at the end of the local tracks. But that's not a great user experience when our users need to look at the IPC markers. There are two IPC track cases:

1. If an IPC track belongs to a global track, we would like to show those tracks right after network and memory tracks and before other threads.
2. If an IPC track belongs to a local track, we would like to show those tracks right after those local thread tracks.

With this PR fixes those two items.

Some example profiles:

1. Deploy preview / Production
2. Deploy preview / Production
3. Deploy preview / Production

Note that some of the IPC tracks may be visible even though their threads are not. This is because we always show the IPC tracks right now but it will be fixed one #3908 lands.

[codecov]

Codecov Report

Merging #3968 (a32bb0e) into main (82019de) will decrease coverage by 0.00%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##             main    #3968      +/-   ##
==========================================
- Coverage   87.26%   87.26%   -0.01%     
==========================================
  Files         279      279              
  Lines       23924    23934      +10     
  Branches     6317     6325       +8     
==========================================
+ Hits        20877    20885       +8     
- Misses       2807     2809       +2     
  Partials      240      240              

Impacted Files	Coverage Δ
src/profile-logic/tracks.js	83.33% <83.33%> (-0.07%)	⬇️

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[julienw]

Thanks, this looks good to me!

Only thing that disturbs me is when some IPC track is present but its thread companion isn't. But I guess this is some discussion for later?

[julienw]

👍

[julienw]

Thanks for the new test

[canova]

Thanks, this looks good to me!

Thanks for the review!

Only thing that disturbs me is when some IPC track is present but its thread companion isn't. But I guess this is some discussion for later?

This will be fixed once I land the #3908. I didn't land it yet mostly because I still find it useful to see them all the time while I'm working on them :)