build(devtools): Bundle `devtools-core` in API-Extractor

[Josmithr]

Will ensure that core API members appear directly in website API docs and will help detect transitive breaking changes from devtools-core.

Also updates @packageDocumentation comment with more details.

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +245 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	467.24 KB	467.27 KB	⯅ +35 Bytes
azureClient.js	564.01 KB	564.06 KB	⯅ +49 Bytes
connectionState.js	724 Bytes	724 Bytes	■ No change
containerRuntime.js	263.43 KB	263.45 KB	⯅ +14 Bytes
fluidFramework.js	428.31 KB	428.32 KB	⯅ +14 Bytes
loader.js	134.18 KB	134.19 KB	⯅ +14 Bytes
map.js	42.71 KB	42.71 KB	⯅ +7 Bytes
matrix.js	150.15 KB	150.16 KB	⯅ +7 Bytes
odspClient.js	529.85 KB	529.89 KB	⯅ +49 Bytes
odspDriver.js	97.88 KB	97.9 KB	⯅ +21 Bytes
odspPrefetchSnapshot.js	42.81 KB	42.83 KB	⯅ +14 Bytes
sharedString.js	166.23 KB	166.24 KB	⯅ +7 Bytes
sharedTree.js	418.76 KB	418.77 KB	⯅ +7 Bytes
Total Size	3.38 MB	3.38 MB	⯅ +245 Bytes

---

Baseline commit: 8e4df0d88681381a7ed5ecc0bcf39168c510233f

Generated by :no_entry_sign: dangerJS against b7b621d53164f193b232d92ca897aa21b8a4d9b7

[github-actions[bot]]

🔗 No broken links found! ✅

Your attention to detail is admirable.

linkcheck output

> fluid-framework-docs-site@0.0.0 ci:check-links /home/runner/work/FluidFramework/FluidFramework/docs
> start-server-and-test "npm run serve -- --no-open" 3000 check-links

1: starting server using command "npm run serve -- --no-open"
and when url "[ 'http://127.0.0.1:3000' ]" is responding with HTTP status code 200
running tests using command "npm run check-links"

> fluid-framework-docs-site@0.0.0 serve
> docusaurus serve --no-open

[SUCCESS] Serving "build" directory at: http://localhost:3000/

> fluid-framework-docs-site@0.0.0 check-links
> linkcheck http://localhost:3000 --skip-file skipped-urls.txt

Crawling...

Stats:
  170005 links
    1595 destination URLs
    1825 URLs ignored
       0 warnings
       0 errors