[TASK] Adds back the toolbar for tables, which was dropped from the s…

[weisgerberm]

…witch from ckeditor v4 to v5 (TYPO3 12.x)

Pull Request

Related Issues

• Closes #
• Fixes # [bug]
• Resolves # [feature/question]

Prerequisites

• [ ] Changes have been tested on TYPO3 v10.4 LTS
• [ ] Changes have been tested on TYPO3 v11.5 LTS
• [x ] Changes have been tested on TYPO3 v12.2
• [ ] Changes have been tested on PHP 7.2
• [ ] Changes have been tested on PHP 7.3
• [ ] Changes have been tested on PHP 7.4
• [x ] Changes have been tested on PHP 8.0
• [ ] Changes have been checked for CGL compliance php-cs-fixer fix

Description

[Description of changes proposed in this pull request]

Steps to Validate

1. open RTE
2. creating Table
3. selecting cell
4. Table toolbar pops up