* Codespaces, setup and beginner journeys for getting started.

* Added missing alt texts and shortened some texts.

* Fixing wording for terminal in Codespaces.

* Fixed action for opening settings

* Replacing unoptimized PNGs with optimized jpgs (70% compression)

* Add some minor css tweaks
Co-authored-by: NJackson Kearl <jakearl@microsoft.com>

This reverts commit d03490f3.

Reworking external opener implementation to allow configured openers to be called directly without a canOpen check

If the user has configured a specific external uri opener, we should always try to use that without first calling `canOpen` to filter down the list of openers.

This change also adds `ExternalUriOpenerEnablement` which allows an opener to mark itself as the preferred opener for a given uri. If only a single preferred opener is returned, it will be used automatically for that uri (although user configuration can override this)

fixes #112480

Fuzzy score improvements

Includes:
- fix in json schema
- use object instead of array
- change label of already forwarded ports when setting changed
- fix for merging ranges

Implement terminal flow control

fix #37570 add RELATIVE_FILEPATH snippet variable

breakpoints: inline action to edit condition. Render conditions for function breakpoints. Allow to edit conditions for function breakpoints

fixes #113805
fixes #3646

`yarn` no longer compiles the smoke test as a postinstall script. This breaks the flow of running `yarn && yarn smoketest` to execute the smoketest.

So change `yarn smoketest` to also do the compiling of the smoke test. But that generates too much extra work on the build machine, which needs to invoke `yarn smoketest` twice, once for Electron and once for web.

To workaround that, `yarn smoketest-no-compile` is added, which can be used by the build machine to avoid needlessly compiling.

While here, the nodejs version is already checked in the `yarn` preinstall script, so remove the check from the smoke test.

BUGFIX: Fix semantic highlight scheduling