feat: display ERRORS first on validator documentation

[cka-y]

Summary:
Closes #1605

Expected behavior:
ERROR notices are displayed first, followed by WARNING and then INFO in both the documentation and validation report.

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• Add or update any needed documentation to the repo
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[qcdyx]

LGTM

[emmambd]

@cka-y It looks like this original order is also affecting the actual HTML report (it's warning, info, error right now). I assume this would be a different issue - is that correct?

[cka-y]

@cka-y It looks like this original order is also affecting the actual HTML report (it's warning, info, error right now). I assume this would be a different issue - is that correct?

I included it as part of this PR

[emmambd]

LGTM after testing order on a few feeds

[github-actions]

✅ Rule acceptance tests passed.
New Errors: 0 out of 1502 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Errors: 0 out of 1502 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
New Warnings: 0 out of 1502 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Warnings: 0 out of 1502 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
3 out of 1505 sources (~0 %) are corrupted.
Corrupted sources:
ae-abu-dhabi-emirate-department-of-municipalities-and-transport-gtfs-1329
at-wien-wiener-lokalbahnen-wlb-gtfs-648
ca-quebec-societe-des-transports-de-rimouski-gtfs-760
Commit: 7dc620f
Download the full acceptance test report here (report will disappear after 90 days).
✅ Rule acceptance tests passed.

[jcpitre]

I asked a question on a minor point, but could be merged as-is.

[github-actions]

✅ Rule acceptance tests passed.
New Errors: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Errors: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
New Warnings: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Warnings: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
0 out of 1520 sources (~0 %) are corrupted.
Commit: a1a0465
Download the full acceptance test report here (report will disappear after 90 days).
✅ Rule acceptance tests passed.

[github-actions]

✅ Rule acceptance tests passed.
New Errors: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Errors: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
New Warnings: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Warnings: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
0 out of 1520 sources (~0 %) are corrupted.
Commit: 4695ba4
Download the full acceptance test report here (report will disappear after 90 days).
✅ Rule acceptance tests passed.

[github-actions]

✅ Rule acceptance tests passed.
New Errors: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Errors: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
New Warnings: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Warnings: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
0 out of 1520 sources (~0 %) are corrupted.
Commit: 9b32d42
Download the full acceptance test report here (report will disappear after 90 days).
✅ Rule acceptance tests passed.

[davidgamez]

LGTM!

[github-actions]

✅ Rule acceptance tests passed.
New Errors: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Errors: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
New Warnings: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
Dropped Warnings: 0 out of 1520 datasets (~0%) are invalid due to code change, which is less than the provided threshold of 1%.
0 out of 1520 sources (~0 %) are corrupted.
Commit: ac1f878
Download the full acceptance test report here (report will disappear after 90 days).
✅ Rule acceptance tests passed.