Tiptap RTE: Clear Formatting, resets nodes to "paragraph"

[leekelleher]

Description

Fixes #19752.

Updated Tiptap RTE's Clear Formatting toolbar button feature to reset any nodes (e.g. headings) back to the default paragraph.

How to test?

In a Tiptap RTE, (with Clear Formatting toolbar button added), enter a variety of rich-text, (e.g. headings, bold, italic, etc.); press the Clear Formatting button, the formatting of the text should be removed, leaved plain-text paragraphs.

[Copilot]

Pull Request Overview

This PR updates the Tiptap RTE's Clear Formatting functionality to reset node types (like headings) to paragraphs in addition to clearing text formatting. The change ensures that the Clear Formatting button provides more comprehensive formatting removal by addressing both node-level formatting (headings, lists, etc.) and inline formatting (bold, italic, etc.).

• Adds clearNodes() method to the clear formatting chain to reset node types to paragraphs
• Maintains existing functionality for clearing marks, classes, and styles

Comments suppressed due to low confidence (1)

src/Umbraco.Web.UI.Client/src/packages/tiptap/extensions/toolbar/clear-formatting.tiptap-toolbar-api.ts:6

• The addition of clearNodes() introduces new behavior that should be covered by tests to verify that node types (headings, lists, etc.) are properly reset to paragraphs when clear formatting is executed.

		editor?.chain().focus().clearNodes().unsetAllMarks().unsetClassName().unsetStyles().run();

[AndyButland]

Works as described - thanks.