Add raw error to analytics E2E error event context

[BillCarsonFr]

Related to element-hq/element-meta#224

Currently most of errors reported by EW are UnknownError.
We need to get more information on what the actual underlying error is.

This PR is adding the raw error as part of the context of the analytic event.
This is a quick first step to get us more information. We will transition next to a new dedicated Error Event for E2EE

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This change is marked as an internal change (Task), so will not be included in the changelog.

[turt2live]

it's a bit difficult to review this with failing CI

[codecov]

Codecov Report

Merging #8447 (8d7a6b9) into develop (3e31fdb) will decrease coverage by 0.07%.
The diff coverage is 100.00%.

❗ Current head 8d7a6b9 differs from pull request most recent head e536412. Consider uploading reports for the commit e536412 to get more accurate results

@@             Coverage Diff             @@
##           develop    #8447      +/-   ##
===========================================
- Coverage    30.85%   30.78%   -0.08%     
===========================================
  Files          893      893              
  Lines        50793    50775      -18     
  Branches     12928    12923       -5     
===========================================
- Hits         15671    15629      -42     
- Misses       35122    35146      +24     

Impacted Files	Coverage Δ
src/DecryptionFailureTracker.ts	66.66% <100.00%> (ø)
src/components/views/rooms/SearchBar.tsx	0.00% <0.00%> (-89.29%)	⬇️
src/components/views/rooms/ReadReceiptGroup.tsx	8.33% <0.00%> (-21.67%)	⬇️
src/events/EventTileFactory.tsx	66.66% <0.00%> (-0.36%)	⬇️
src/contexts/RoomContext.ts	100.00% <0.00%> (ø)
src/components/structures/RoomView.tsx	29.65% <0.00%> (ø)
src/components/views/right_panel/UserInfo.tsx	29.23% <0.00%> (ø)
src/Lifecycle.ts	1.42% <0.00%> (+<0.01%)	⬆️
...gs/handlers/AbstractLocalStorageSettingsHandler.ts	76.31% <0.00%> (+1.31%)	⬆️

[BillCarsonFr]

it's a bit difficult to review this with failing CI

Yep sry @turt2live
I fixed the code style issues. I rebased and it did fix the e2e failing test.
But there still the SonarQube check failing, not sure what to do, it says Set the SONAR_TOKEN env variable.

[turt2live]

SonarQube can be ignored

[t3chguy]

(fixing sonar check)

[turt2live]

Thanks!