Add OK/Cancel buttons to the text input fields

[vrubezhny]

This PR adds OK/Cancel buttons to the text input fields used at the creation of a cluster namespace/project as well as at the adding of a Devfile Registry (name, URL, token)

[vrubezhny]

All the input fields have common view like the following for normal text values:

and for the passwords/tokens:

[codecov]

Codecov Report

Attention: 143 lines in your changes are missing coverage. Please review.

Comparison is base (f7c404c) 34.49% compared to head (237970c) 34.23%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3521      +/-   ##
==========================================
- Coverage   34.49%   34.23%   -0.26%     
==========================================
  Files          81       82       +1     
  Lines        5787     5847      +60     
  Branches     1158     1171      +13     
==========================================
+ Hits         1996     2002       +6     
- Misses       3791     3845      +54     

Files	Coverage Δ
src/openshift/openshiftItem.ts	43.39% <25.00%> (+1.08%)	⬆️
src/openshift/cluster.ts	9.20% <28.57%> (+0.99%)	⬆️
src/util/inputValue.ts	6.97% <6.97%> (ø)
src/registriesView.ts	25.47% <1.04%> (-8.08%)	⬇️

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[datho7561]

Works very well from my testing.

One thing I ran into is that the back button doesn't work as expected in the "Add Devfile Registry" workflow. I think it would be helpful to have the back button working. Do you want to work on that in this PR, or should I file this as an issue to work on in the future?

[vrubezhny]

One thing I ran into is that the back button doesn't work as expected in the "Add Devfile Registry" workflow. I think it would be helpful to have the back button working. Do you want to work on that in this PR, or should I file this as an issue to work on in the future?

Thanks for looking at this. I think you're right, and Back button should allow to navigate back through all the fields. I'll continue working on this PR.

[vrubezhny]

Added the possibility to go back when creating a Devfile Registry item:

Screencast.from.2023-11-06.18-22-33.webm

[datho7561]

If I enter an invalid URL (eg. registry.stage.devfile.io (without the https://)) and then hit the enter key, it freezes.

[vrubezhny]

If I enter an invalid URL (eg. registry.stage.devfile.io (without the https://)) and then hit the enter key, it freezes.

I can't reproduce any kind of freeze here. But yes, there is a bug: if input is not valid it just closes the input URL dialog leaving the promise not resolved, so it might freeze later on repeated retries.

UPD: The problem is an exception happening in new URL() and not being caught, thus leaving the field not editable and the result not resolved.

UPD 2: Fixed now

[datho7561]

Looks good and seems to working well. Thanks, Victor!