Add blog sections and components

[calvellido]

This PR adds the necessary changes to show the blog sections and components according to the proposed design.

Changes:

• Fix deprecated grid-gap for gap property names
• Add some front matter to the current posts
• Swizzle Tag component
• Create BlogListPage custom component
• Create BlogTagsPostsPage custom component
• Modify Docusaurus blog plugin config
• Swizzle BlogLayout component
• Swizzle BlogPostItem Header component
• Swizzle BlogPostItem Header Author component
• Create BlogPostItem Header Image custom component
• Create BlogPostItem Header Tags custom component
• Swizzle BlogPostItem Footer component
• Refactor ImageCard to implement landscape mode programmatically
• Refactor Hero component improving responsive view
• General styling changes for the blog

Preview

BlogListPage

BlogLayout and BlogPostItem

BlogTagsPostPage

Tags