fix: Sized image dimensions are lost upon page reload (image shows up again as 100% full width) 🤖

[mrjbj]

Body:

What changes I've made

• Renamed ImageResize extension from 'imageResize' to 'image' so it fully replaces the base TipTap Image extension
• Removed the redundant base Image extension registration from the Editor

Why I've made these changes

Resized image dimensions are lost on save/reload. Both the base Image (name: 'image') and ImageResize (name: 'imageResize') extensions were registered simultaneously. When TipTap parses saved HTML, it matches <img> tags to the 'image' node type — the base extension, which doesn't persist the style attribute. By renaming ImageResize to 'image' and removing the base, the resize-aware extension fully owns <img> parsing and preserves dimensions.

How I've tested these changes

• Inserted an image in the editor, resized it via drag handles
• Saved, navigated away (including to different page), returned — image retained its resized dimensions
• Verified resize handles still appear and function correctly
• Confirmed new images default to 100% width as expected

Checklist

• I have read the contributing guidelines.
• My code follows the coding standards of the project.
• I have tested my changes, and they work as expected.
• I understand that this PR will be closed if I do not follow the [contributor guidelines] https://github.com/HiEventsDev/hi.events/blob/develop/CONTRIBUTING.md) and if this PR template is left unedited.

[daveearley]

Thank you for this, @mrjbj!