Docs: update Latest News section

[huynhicode]

📑 Summary

This PR contains updates to the Latest News section:

• Announcements page: add latest blog post & minor verbiage update
• Blog page: add latest blog post

Resolves # n/a

📏 Design Decisions

Design decisions come from within the Mermaid Chart team.

📋 Tasks

Make sure you

• 📖 have read the contribution guidelines
• 💻 have added necessary unit/e2e tests.
• 📓 have added documentation. Make sure MERMAID_RELEASE_VERSION is used for all new features.
• 🔖 targeted develop branch

Screenshots:

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[aloisklink]

Looks good to me!

The failing status on the link checker CI is unrelated: https://github.com/mermaid-js/mermaid/actions/runs/7091400128/job/19300455455?pr=5107. It looks like errors with https://bundlephobia.com/package/mermaid and https://nicegui.io/reference

[codecov]

Codecov Report

Merging #5107 (78c44bf) into master (a1563c9) will decrease coverage by 36.85%.
Report is 2 commits behind head on master.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #5107       +/-   ##
===========================================
- Coverage   79.78%   42.94%   -36.85%     
===========================================
  Files         164       23      -141     
  Lines       13820     4972     -8848     
  Branches      693       21      -672     
===========================================
- Hits        11026     2135     -8891     
- Misses       2644     2836      +192     
+ Partials      150        1      -149     

Flag	Coverage Δ
e2e	?
unit	42.94% <ø> (ø)

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see 160 files with indirect coverage changes