fix(ui-contract-editor) prevent sig variable edits on readOnly - I212

[sanketshevkar]

…#212)

Signed-off-by: User shevkar.sanket@gmail.com

Closes #212

Changes

• Check whether the variable is editable or not.
• A condition is added which checks it and prevents editing of the variable if it is read-only.

Related Issues

• Issue #212

Author Checklist

• [x] Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• [ ] Vital features and changes captured in unit and/or integration tests
• [ ] Commits messages follow AP format
• [ ] Extend the documentation, if necessary
• [x] Merging to master from fork:branchname
• [ ] Manual accessibility test performed
  • [ ] Keyboard-only access, including forms
  • [ ] Contrast at least WCAG Level A
  • [ ] Appropriate labels, alt text, and instructions

[irmerk]

Functionally looks to work, I need to look into the code a bit more soon to make sure that this is doing what we want it to do.

[sanketshevkar]

Great job -- this one is definitely tricky!

Thank you @dselman :)