[web] Do not show group options name until needed

[dgdavid]

Problem

During a review meeting, we've spot that displaying the group options name when there is only a single group of options can be more confusing than helpful.

Solution

Display the group name only when needed. I.e., when really having more than one group of actions for a set of page options.

Testing

• Added a new unit test
• Tested manually

Notes

Since it's related with #545 and it has not been merged to master yet, this PR belongs to the same changelog entry. No extra one needed, IMHO.

Screenshots

Before	After

[github-actions]

Pull Request Test Coverage Report for Build 4859591904

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 74.167%

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Totals
Change from base Build 4818237491:	0.1%
Covered Lines:	4857
Relevant Lines:	6318

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💛 - Coveralls

[joseivanlopez]

LGTM