Fix incorrect example in config.example.yml

[tdonohue]

Description

As of 7.6.2 / 8.0, we now have an option to control Angular's inlineCriticalCss. This is incorrectly documented in our config.example.yml as being environment.universal.inlineCriticalCss.

The correct config is environment.ssr.inlineCriticalCss as shown in https://github.com/DSpace/dspace-angular/blob/main/server.ts#L248 and https://github.com/DSpace/dspace-angular/blob/main/src/config/ssr-config.interface.ts

This small PR corrects the example in config.example.yml and cleans up a few other minor comments around the example configs in that file.

Instructions for Reviewers

• This config.example.yml is not used anywhere in our codebase. It's meant for documentation purposes & as a simple example. So, this small PR does not require testing.

[tdonohue]

Merging immediately as this is a "documentation" fix & tests pass. Will auto-port to 8.x and 7.x as this same issue appears in both of those releases.

[dspace-bot]

Backport failed for dspace-7_x, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin dspace-7_x
git worktree add -d .worktree/backport-3683-to-dspace-7_x origin/dspace-7_x
cd .worktree/backport-3683-to-dspace-7_x
git switch --create backport-3683-to-dspace-7_x
git cherry-pick -x 138c007f28b643397660e32d16d8b82b44731807

[dspace-bot]

Successfully created backport PR for dspace-8_x:

• [Port dspace-8_x] Fix incorrect example in config.example.yml #3684