Sitemap editor: Fix issues with AND, buttongrid and numeric commands

[mherwege]

Fixes #2605.
Also fixes issue with Buttongrid and non-numeric commands.

[relativeci]

#2011 Bundle Size — 10.64MiB (~+0.01%).

6828520(current) vs eb0a247 main#2007(baseline)

Warning

Bundle contains 2 duplicate packages – View duplicate packages

Bundle metrics   1 change

	Current #2011	Baseline #2007
Initial JS	1.87MiB	1.87MiB
Initial CSS	607.87KiB	607.87KiB
Cache Invalidation	17.74%	17.88%
Chunks	223	223
Assets	246	246
Modules	2888	2888
Duplicate Modules	149	149
Duplicate Code	1.85%	1.85%
Packages	97	97
Duplicate Packages	2	2

Bundle size by type   1 change 1 regression

	Current #2011	Baseline #2007
JS	8.83MiB (~+0.01%)	8.83MiB
CSS	891.48KiB	891.48KiB
Fonts	526.1KiB	526.1KiB
Media	295.6KiB	295.6KiB
IMG	140.74KiB	140.74KiB
HTML	1.24KiB	1.24KiB
Other	871B	871B

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Bundle analysis report Branch mherwege:sitemap_visibility_fix Project dashboard

[lolodomo]

@mherwege : does it cover new Button element?

[mherwege]

@lolodomo No, it doesn't. And I won't be able to do that before the 4.2 release. It is a major refactoring, not just on the parser side, but mainly on the UI side. Ideally, I also don't want to be left with 2 totally different ways of defining a buttongrid in the UI, so the current approach may have to be replaced by a new approach that has the wider functionality. Of course, the old format should be parsed/converted automatically. In doing that, I actually may also need adapting the core part for this.
I started working on this, but the effort was quite big, and I have halted it for now. I will need to revisit.

This PR was just a fix to the already existing functionality.