ReadMe updates for Compose Language Service (microsoft#3310)

* Updated readme to reflect new compose lang service

* made changes throughout readme

* Hover-support screenshot changes

Co-authored-by: Brandon Waterloo [MSFT] <36966225+bwateratmsft@users.noreply.github.com>

Set the language server to off-by-default for this release (microsoft…

…#3214)

Change to `pwa-node` for Node debug (cherry-pick microsoft#3179) (mic…

…rosoft#3180)

Change ordering of node Dockerfile's USER directive (microsoft#3141)

Fix outdated image checker (microsoft#3069)

Fixes microsoft#3066

Update changelog and notices for 1.14 release (microsoft#2998)

Update date on release notes (microsoft#2966)

Update date on release notes (microsoft#2966)

Cherry-pick microsoft#2870: Fix semver comparisons (microsoft#2871)

* Fix semver comparisons (microsoft#2870)

* Update version and changelog

Updates to notices file (microsoft#2849)