Editor: Add Semantic Headings to the right click menu of Text Elements

[timarney]

Context

Within the right click menu of a text element on the page, there should be a new item called Heading Level
This Heading Level item should have a submenu that shows the following properties (along with the one currently selected):

• Automatic (xyz) (stored as auto)
• Heading 1 (stored as h1)
• Heading 2 (stored as h2)
• Heading 3 (stored as h3)
• Paragraph (stored as p)

Summary

Adds right click menu for heading level to text elements.

Relevant Technical Choices

To-do

User-facing changes

Testing Instructions

• This is a non-user-facing change and requires no QA

This PR can be tested by following these steps:

1. Add a text element to the canvas
2. Right click the element
3. Select Heading Level from the Right Click Menu.
4. Select a new heading level from the sub menu and note that it gets selected when click
5. Verify the style panel heading level matches what is selected from the Right Click Menu.
6. Set the heading level to Automatic - note that the "current" tag name is noted for the "Automatic" option

Reviews

Does this PR have a security-related impact?

Does this PR change what data or activity we track or use?

Does this PR have a legal-related impact?

Checklist

• This PR addresses an existing issue and I have linked this PR to it in ZenHub
• I have tested this code to the best of my abilities
• I have verified accessibility to the best of my abilities (docs)
• I have verified i18n and l10n (translation, right-to-left layout) to the best of my abilities
• This code is covered by automated tests (unit, integration, and/or e2e) to verify it works as intended (docs)
• I have added documentation where necessary
• I have added a matching Type: XYZ label to the PR

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Fixes #11402

[googleforcreators-bot]

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[miina]

LGTM!

Would be nice to add this to the Storybook as well for the text element, to keep it up to date.

[timarney]

Story added.