KTextbox: Support a "clearable" prop to show a clear button

[practicatto]

Description

KTextbox support to show clearable button when clearable prop to true

Issue addressed

Addresses #584

Before/after screenshots

• KTextbox: Support a "clearable" prop to show a clear button #589
  • Description: Added a clearable prop to KTextbox
    • Products impact: -
    • Addresses: KTextbox: Support a "clearable" prop to show a clear button #584
  • Components: KTextbox
  • Breaking: Will this change break something in a consumer? no
  • Impacts a11y: Does this change improve a11y or adds new features that can be used to improve it? no
  • Guidance: -

Steps to test

1. Run the web server with yarn dev
2. Add KTextbox to the playground.vue file
3. Play with it :)

Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• Critical and brittle code paths are covered by unit tests
• The change is described in the changelog section above

Reviewer guidance

• Is the code clean and well-commented?
• Are there tests for this change?
• Are all UI components LTR and RTL compliant (if applicable)?
• Add other things to check for here

After review

• The changelog item has been pasted to the CHANGELOG.md

Comments

[practicatto]

@MisRob Hi! I've closed the previous pull request as it was mistakenly based on the release-v4 branch. My apologies for any inconvenience this may have caused. I've submitted a new pull request after addressing a few minor issues I initially overlooked. As I'm still familiarizing myself with the developer's guide, I would greatly appreciate any feedback you could provide to help me improve. This is the new PR i opened today #591

[MisRob]

Hi @practicatto, thank you! I think it's fine to target the release-v4 here. I will be glad to have a look at your PR, just note that right now I have quite a full PR queue so it may take me some time.