feat: Enable vitepress build

[d3xter666]

This change continues the efforts from #1132 and enhances it by enabling vitepress build of the documentation.

JIRA: CPOUI5FOUNDATION-899

[maxreichmann]

/pages/CLI.html returns a 404.
It is referenced multiple times such as in the sidebar or in /pages/GettingStarted.html as "Next page"

[d3xter666]

/pages/CLI.html returns a 404. It is referenced multiple times such as in the sidebar or in /pages/GettingStarted.html as "Next page"

The CLI page must be generated via the npm run generate-cli-doc script in the root of the monorepo

[maxreichmann]

Remark 1:
Wouldn't it make sense to move all the migration guide files from packages/documentation/docs/updates to the general pages directory packages/documentation/docs/pages?
We would then have all files in a combined directory and this would fix some 404 linkings e.g. of the button "Migrate to v4" on Home.html.

Remark 2:
These migration guide files contain wrongly formatted info/warning/success elements which have to be replaced.
e.g.:

• For !!! tip, we can use ::: tip [...] ::: and remove the indendation
• the same works for !!! warning
• for !!! success, we have to find a different alternative

Since those files haven't been touched in this PR yet, I couldn't create a GH code suggestion.

[d3xter666]

We would then have all files in a combined directory and this would fix some 404 linkings e.g. of the button "Migrate to v4" on Home.html.

My intention was to do the cleanup in the next step, but now I have fixed the formatting and links.
Thanks!

[matz3]

v4?

I wonder why we can't use relative links here.

[d3xter666]

It' should be v5, indeed and I have adjusted it, but It used to be that way so far.
I was trying to just adjust the formatting and eventually something broken/wrong.

[maxreichmann]

Going through the pages I noticed..

1. the API reference links sometimes include v4, sometimes v5 (currently 404). I suggest using stable.
2. nit: On "Migrate to v3", the caption formatting could be improved. Since, it's v3 it might not be relevant.

[d3xter666]

Going through the pages I noticed..

1. the API reference links sometimes include v4, sometimes v5 (currently 404). I suggest using stable.
2. nit: On "Migrate to v3", the caption formatting could be improved. Since, it's v3 it might not be relevant.

Thanks!
I have addressed those issues.
The 404s for API links will be fixed, once we produce a build as it will deploy to v5 (it's currently missing)

The formatting should is fine now