docs: add migration document for meta element APIs

[davidlj95]

Issue or need

In #1013, a migration guide was added to aid usersmigrate from deprecated const manager providers to new function manager providers

Same could be done for other deprecations so users are informed about how to migrate. Here adding migration docs for the first deprecation: meta elements API

Proposed changes

Add migration docs for meta element APIs. Update deprecation notices to link to the new doc.

Also configures WebStorm to allow for markdown HTML attribute in doc contents

Quick reminders

• 🤝 I will follow Code of Conduct
• ✅ No existing pull request already does almost same changes
• 👁️ Contributing docs are something I've taken a look at
• 📝 Commit messages convention has been followed
• 💬 TSDoc comments have been added or updated indicating API visibility if API surface has changed.
• 🧪 Tests have been added if needed. For instance, if adding new features or fixing a bug. Or removed if removing features.
• ⚙️ API Report has been updated if API surface is altered.

[davidlj95]

• docs: add migration document for meta element APIs #1048 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (a8052bf) to head (45f7d01).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1048   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           97        97           
  Lines          537       537           
  Branches        64        64           
=========================================
  Hits           537       537           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

---

🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles

[github-actions]

📦 Bundle size (Angular v16)

Git ref: 45f7d01531cffd377850ca7c4001d1e2e55a9cce

Module file	Size	Base size	Difference
ngx-meta-core.mjs	3411 bytes (3.4KiB)	3411 bytes (3.4KiB)	No change
ngx-meta-json-ld.mjs	193 bytes (193B)	193 bytes (193B)	No change
ngx-meta-open-graph.mjs	804 bytes (804B)	804 bytes (804B)	No change
ngx-meta-routing.mjs	379 bytes (379B)	379 bytes (379B)	No change
ngx-meta-standard.mjs	739 bytes (739B)	739 bytes (739B)	No change
ngx-meta-twitter-card.mjs	470 bytes (470B)	470 bytes (470B)	No change
Total	5996 bytes (5.9KiB)	5996 bytes (5.9KiB)	No change

[github-actions]

📦 Bundle size (Angular v15)

Git ref: 45f7d01531cffd377850ca7c4001d1e2e55a9cce

Module file	Size	Base size	Difference
ngx-meta-core.mjs	3386 bytes (3.4KiB)	3386 bytes (3.4KiB)	No change
ngx-meta-json-ld.mjs	198 bytes (198B)	198 bytes (198B)	No change
ngx-meta-open-graph.mjs	804 bytes (804B)	804 bytes (804B)	No change
ngx-meta-routing.mjs	373 bytes (373B)	373 bytes (373B)	No change
ngx-meta-standard.mjs	739 bytes (739B)	739 bytes (739B)	No change
ngx-meta-twitter-card.mjs	412 bytes (412B)	412 bytes (412B)	No change
Total	5912 bytes (5.8KiB)	5912 bytes (5.8KiB)	No change

[github-actions]

📦 Bundle size (Angular v18)

Git ref: 45f7d01531cffd377850ca7c4001d1e2e55a9cce

Module file	Size	Base size	Difference
ngx-meta-core.mjs	3205 bytes (3.2KiB)	3205 bytes (3.2KiB)	No change
ngx-meta-json-ld.mjs	219 bytes (219B)	219 bytes (219B)	No change
ngx-meta-open-graph.mjs	1033 bytes (1.1KiB)	1033 bytes (1.1KiB)	No change
ngx-meta-routing.mjs	394 bytes (394B)	394 bytes (394B)	No change
ngx-meta-standard.mjs	943 bytes (943B)	943 bytes (943B)	No change
ngx-meta-twitter-card.mjs	539 bytes (539B)	539 bytes (539B)	No change
Total	6333 bytes (6.2KiB)	6333 bytes (6.2KiB)	No change

[github-actions]

📦 Bundle size (Angular v17)

Git ref: 45f7d01531cffd377850ca7c4001d1e2e55a9cce

Module file	Size	Base size	Difference
ngx-meta-core.mjs	3205 bytes (3.2KiB)	3205 bytes (3.2KiB)	No change
ngx-meta-json-ld.mjs	219 bytes (219B)	219 bytes (219B)	No change
ngx-meta-open-graph.mjs	1033 bytes (1.1KiB)	1033 bytes (1.1KiB)	No change
ngx-meta-routing.mjs	394 bytes (394B)	394 bytes (394B)	No change
ngx-meta-standard.mjs	943 bytes (943B)	943 bytes (943B)	No change
ngx-meta-twitter-card.mjs	539 bytes (539B)	539 bytes (539B)	No change
Total	6333 bytes (6.2KiB)	6333 bytes (6.2KiB)	No change

[github-actions]

🎉 This PR is included in version 1.0.0-beta.36 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀