FF.com containers docs updates

[ssimic2]

AB#1238

Further clarifications around containers, what they achieve, implications around their lifecycle etc. All in the context of "build with fluid".

[ssimic2]

We are using container IDs in our telemetry to represent instance of the container runtime. What we call here "container ID" is really "docId" in our telemetry. Clients will often use our telemetry to log/observe errors so this will certainly create confusion. At the very least we likely need more explicit clarification on telemetry/logging docs.

[github-actions]

🔗 Found some broken links! 💔

Run a link check locally to find them. See
https://github.com/microsoft/FluidFramework/wiki/Checking-for-broken-links-in-the-documentation for more information.

linkcheck output

> fluidframework-docs@0.25.0 linkcheck /home/runner/work/FluidFramework/FluidFramework/docs
> npm run linkcheck:fast -- --external


> fluidframework-docs@0.25.0 linkcheck:fast /home/runner/work/FluidFramework/FluidFramework/docs
> linkcheck http://localhost:1313 --skip-file skipped-urls.txt "--external"

Crawling...

http://localhost:1313/docs/apis/core-interfaces/ifluidcodedetailscomparer
- (873:360) 'Array.sort' => https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#Description (HTTP 200 but missing anchor)
- (877:168) 'https://..' => https://github.com/npm/node-semver#usage (HTTP 200 but missing anchor)
- (885:25) 'Array.sort' => https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#Description (HTTP 200 but missing anchor)
- (914:25) 'https://..' => https://github.com/npm/node-semver#usage (HTTP 200 but missing anchor)

http://localhost:1313/docs/apis/core-interfaces/ifluidcodedetailscomparer/
- (873:360) 'Array.sort' => https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#Description (HTTP 200 but missing anchor)
- (877:168) 'https://..' => https://github.com/npm/node-semver#usage (HTTP 200 but missing anchor)
- (885:25) 'Array.sort' => https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#Description (HTTP 200 but missing anchor)
- (914:25) 'https://..' => https://github.com/npm/node-semver#usage (HTTP 200 but missing anchor)


Stats:
  121581 links
    1317 destination URLs
       1 URLs ignored
       8 warnings
       0 errors

[github-actions]

This commit is queued for merging with the next branch! Please ignore this PR for now. Contact @microsoft/fluid-cr-infra for help.