Upload images on Text widgets

[mahmoudadel54]

Description

It seems no longer possible to copy/paste images in the Text widget editor. In Details there is anyway a recent function we added for uploading images which is handled by the new text editor.
The editor is the same thanks to #9627 (widgets have a different config). Some additional logic is anyway necessary to share the same codebase for both places (widgets/Details) with an enhancement.

What kind of improvement you want to add? (check one with "x", remove the others)

• Minor changes to existing features
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

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