feat(content): add Content block and cleanup

[proeung]

Issue

Fixes - https://jira.sdlc.merative.com/browse/MERATIVE-778

Description

New

• This PR adds a new block called "Content" /blocks/content as well as cleaning up styles and temporarily hiding the meta wrapper block that's designed for the new upgrade version of the block library.
• Variations
  • Content - Simple
  • Content - Checklist
  • Content - Complex

Design Specs

• Figma Link - https://www.figma.com/file/vw24IPXXt4vCh9BNumka9A/Web--Merative-Digital-Design-System-2.0?type=design&node-id=1634%3A13852&mode=design&t=v6xSx8pIiPAF0sDO-1

Test URLs

• Before (Changes from main): https://main--merative2--hlxsites.hlx.page/block-library/blocks/content
• After (Changes from this PR): https://feat-content-block--merative2--proeung.hlx.page/block-library/blocks/content

Testing Instruction

• Visit the preview page of the "Content" Block - https://feat-content-block--merative2--proeung.hlx.page/block-library/blocks/content
• Ensure that the following variations match with the design (see Figma link)
  • Content - Simple
  • Content - Checklist
  • Content - Complex

[aem-code-sync[bot]]

Hello, I'm Franklin Bot and I will run some test suites that validate the page speed. In case there are problems, just click the checkbox below to rerun the respective action.

• [ ] Re-run PSI Checks

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/block-library/blocks/content

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/block-library/blocks/content

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/block-library/blocks/content

[proeung]

@sachinmesh I just pushed up a commit that addresses all of your feedback. Can you take a look again?

[sachinmesh]

All the feedbacks are fixed, only in mobile the spacing between learn more CTA and the content above it should be 32 px and not 48px.

@proeung

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/block-library/blocks/content