Fixed #5449

Description

[x] getBlockContent, getCommentDelimitedContent

• Recommendations:
  • Rename getBlockContent to getBlockInnerHTML
  • Rename getCommentDelimitedContent to getCommentDelimitedBlockInnerHTML

[ ] serializeAttributes

• Recommendation:
  - Rename attrs argument to attributes
  • Add a JSDoc block for the function
• Section was already completed

[x] Post grammar

• Recommendations:
  • Rename attrs to attributes
  • Rename blockName to name

How has this been tested?

npm test
npm run test-unit
ESLint

Screenshots

Types of changes

Feature: Block API
Features: Parsing

Checklist:

• [x ] My code is tested.
• [x ] My code follows the WordPress code style.
• [x ] My code follows the accessibility standards.
• [x ] My code has proper inline documentation.
• [x ] I've included developer documentation if appropriate.
• [x ] I've updated all React Native files affected by any refactorings/renamings in this PR.