Improve the way beta builds are marked

@taroth21 / @fsundermeyer / @tomschr -- I'd be happy about some feedback on this, because I am not sure in what way this issue should best be attacked.

• Previous solution: just run DAPS with --draft
  • Looks a bit unprofessional, because --draft also turns on file metadata blocks and remarks
• Current solution: run DAPS normally (Adding DRAFT status to DC files SUSE/doc-modular#37)
  • No difference to final version.
• Solution for susedoc.github.io:
  • Run DAPS normally but hack a clickable banner into each document
  • The idea is not so bad (I think) but the implementation is extremely ugly, let's not do it like that for the proper site.

Things I can imagine:

1. --beta parameter in DAPS or just a regular XSLT parameter like $beta-content=1

   • Could trigger adding the aforementioned banners via the stylesheets
   • Not sure where to source content for the banners from -- ideally, the content should be translatable and also depend on the product.

2. Profile for PROFCOND=beta in DC files

   • Would trigger whatever is defined in the XML sources. (For example, a different &productnumber;, e.g. 1.0 beta instead of 1.0)
   • This approach is already used for the release notes, where it triggers display of an additional paragraph in the abstract (not super-effective, no).

3. Some kind of special markup like <dm:betatext>This is beta software. It gives you special powers.</dm:betatext>

   • This could be combined with the triggers from (1)
   • Would be displayed at the top of each page or as a banner or something.

What do you say?

[fsundermeyer]

Regarding the current draft output:
The output of the metadata block is caused by the stylesheets. It should be removed from the stylesheets as a default output for the draft status and only be activated with a second parameter (we could use the existing "meta" parameter).

Generally I suggest to go for option 1, this would also be in line with openSUSE/daps#638

@fsundermeyer By "go for option 1", do you mean that you'd implement a --beta switch in DAPS or that we should just add a $beta-content parameter in XSLT?

And oof, you're right, this is triggered by the stylesheets for some reason, not by DAPS,
https://github.com/openSUSE/suse-xsl/blob/53b25c437f77c576a6986764844d2599d882a8c4/suse2021-ns/xhtml/sections.xsl#L282-L287