Fix issues #311 and #313

[gnbm]

This PR aims to fix two issues:

• Broken display of options with icons #311: broken display of options with HTML content when using tags.
• The search input is disabled when allowNewOption is set to true and the options are empty. #313: using allowNewOption:true with an empty list of options causing the search input to be disabled.

What was happening

1. When using dropdown with options shown as tags where the options have HTML content, the display of the tags gets broken as we can see in the following image (this was introduced in v1.0.41):

2. When using dropdown with settings including allowNewOption:true with an empty list of options caused the search input to be disabled (this was introduced in v1.0.41):

After the fix

• Included a new section to exemplify the scenario where a dropdown with options shown as tags with the options having HTML content - ✅

• Followed the same steps above - ✅
• Ran regression scenarios - ✅
• Run automated tests - ✅

Both are now working as expected:

• Broken display of options with icons #311 - ✅
  

• The search input is disabled when allowNewOption is set to true and the options are empty. #313 - ✅
  

[joselrio]

I think this can be defined as empty, and inside the if it will have the expected value, then assigned into the valueTagHtml string, if it's empty it will add nothing, otherwise it will add the expected attribute. This way the if/else can be removed ;)

[gnbm]

@joselrio Don't know why but the condition was not committed. Thank you for raising that 💪🏻

[gnbm]

@joselrio Both changes are now committed. Thank you for the great review 🚀

[joselrio]

Also @gnbm by looking into the file you're PullRequested I think there's a missing validation to fix the issue about the search input disabled when allowNewOption=true ;)