feat(collection): improve SEO

[roiLeo]

Before submitting this PR, please make sure:

• Code builds clean without any errors or warnings
• I've merged recent default branch -- main and I've no conflicts
• I didn't break any original functionality

PR type

• Bugfix
• Feature
• Refactoring

Changes

• fix semantic collection by adding h1
• fix galleryCard image alternative text
• add meta og:url
• add meta twitter:card
• add subscan svg alternative text

[yangwao]

Do you refer to this one #118 ?

Looks the same to me here

[roiLeo]

This is not #118 related, I've added a comment in issue for telegram documentation.
This PR fix semantic issue (h1), add open graph basic Metadata (og:url) and preview twitter card for large images.