[O2B-536] Minor improvements to selection dropdown

[martinboulais]

I have a JIRA ticket

• branch and/or PR name(s) include(s) JIRA ID
• issue has "Fix version" assigned
• issue "Status" is set to "In review"
• PR labels are selected

Notable changes for users:

• Radio buttons are displayed in selection dropdown when options are exclusives

Notable changes for developers:

• Custom selector can be applied in selection dropdown options for values that are not CSS valid

Changes made to the database:

• N/A

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 13 lines in your changes missing coverage. Please review.

Project coverage is 44.03%. Comparing base (f3937b5) to head (966f17a).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...nts/common/selection/dropdown/selectionDropdown.js	0.00%	7 Missing ⚠️
...blic/components/common/selection/SelectionModel.js	0.00%	4 Missing ⚠️
...lters/common/combinationOperatorChoiceComponent.js	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1828      +/-   ##
==========================================
+ Coverage   43.86%   44.03%   +0.16%     
==========================================
  Files         891      891              
  Lines       15971    15980       +9     
  Branches     3020     3024       +4     
==========================================
+ Hits         7006     7036      +30     
+ Misses       8965     8944      -21     

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