Remove react-contenteditable dependency

[jna4k]

Description

This PR removes the react-contenteditable dependency and replaces the functionality with standard html.

• I removed the setText prop because it was not being used anywhere.
• I removed the onChange handler from the element, because div doesn't support it, while the ContentEditable element did. This is not a problem because it was not being used, and even if it did, the onBlur handler would end up catching the change anyways.
• I added suppressContentEditableWarning to avoid errors in the browser devtool

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x", remove the others)

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

Issue

What is the current behavior?

#12760

What is the new behavior?

We will no longer download the react-contentable npm package and the component is replaced with a

Breaking change

Does this PR introduce a breaking change? (check one with "x", remove the other)

• Yes, and I documented them in migration notes
• No

Other useful information