Page details: Remove col-lg-9 class

[EricDunsworth]

There's no need for it. The col-md-9 class it was paired with already fulfils the same purpose (has the same grid width and scales up to larger views).

Using #2377 as a basis, this removes the col-lg-9 class and updates code samples/documentation/etc accordingly.

Also adds the following updates:

• Adjust the Bootstrap 3 static header and footer page's page details section (was using the col-lg-9 class and share this page...)
• Revise the page details docs' implementation notes and migration instructions
• Allow HTML to be rendered in history notes (via "isHTML": true, for non-breaking spaces and HTML tags)
• Base include file names on component version numbers instead of iteration numbers (i.e. renamed 4 to 3.1 and 5 to 3.2)

[EricDunsworth]

@Garneauma @duboisp This PR should be ready to review now :)!

Btw please keep in mind that all outdated comments are still relevant... Turns out that force-pushing causes file comments to get marked as outdated... even though the same doesn't apply to unchanged line comments :S.

It's also worth noting that I was unable to test this PR's changes first-hand (apart from the class removal lol). Although I followed #2377's structure super closely and aren't expecting any surprises.

[Garneauma]

Pre-approved upon successful review.

[Garneauma]

Some small changes:

• Rename page-details-v4.html to page-details-v3.1.html (en and fr)
• Thank you for adding instructions to migrate from 3.1 to 3.2, but let's merge 3.1 and 3.2 in the instructions and just have a tab for migrating from 3.0 to 3.2 as 3.1 has been live for such a short time.

[EricDunsworth]

I think this is good to go now :)!

Latest changes:

• Changed file version numbers from 4 to 3.1:
  • _includes/sites/page-details/page-details-4-*.html -> _includes/sites/page-details/page-details-3.1-*.html
  • sites/page-details/demoted/page-details-v4-*.html -> sites/page-details/demoted/page-details-v3.1-*.html
  • sites/page-details/samples/page-details-4-*.html -> sites/page-details/samples/page-details-3.1-*.html
• Changed file version numbers from 5 to 3.2:
  • _includes/sites/page-details/page-details-5-*.html -> _includes/sites/page-details/page-details-3.2-*.html
  • sites/page-details/samples/page-details-5-*.html -> sites/page-details/samples/page-details-3.2-*.html
• Updated renamed file references
• Renamed 4.0 to 3.1 in a random include reference (via suggested commits)
• Revised the implementation section's note about <footer>/<article> (via suggested commits):
  • Minor adjustment: Removed "the" from the English version of "However, for the version 2.0..." (kept "la" in French)
• Implementation migration instructions:
  • Removed 3.1 to 3.2 section (via suggested commit)
  • Revised the 3.0 to 3.1 section to cover 3.0 to 3.2:
    • Renamed its implementation ID from implement_pd_3to4 to implement_pd_3to5
• Updated modified dates
• Revised commit/OP message
• Added @Garneauma as a co-author

[Garneauma]

Please make sure all references to version 4 and 5 are updated to 3.1 and 3.2.

[EricDunsworth]

Net-new updates:

• sites/page-details/page-details-default-*.html and sites/page-details/page-details-pft-*.html:
  • Updated AJAX references from 4 (3.1) to 3.2
  • Changed modified dates from 2024-06-03 to today
• sites/page-details/demoted/page-details-v3.1-*.html (previously v4.0):
  • Renamed all mentions of 4.0 to 3.1 in page titles/content areas
• Fixed outdated file name references in JSON files
• Updated modified dates