refactor: update the main readme file

[BioPhoton]

This PR reworks the landing page of the open source mono repo.

• new order of blocks
• information on what the tool can do
• links to other parts of our repos

[github-actions]

Code PushUp

🤨 Code PushUp report has both improvements and regressions – compared target commit 0c5a1fd with source commit e19917f.

🏷️ Categories

🏷️ Category	⭐ Current score	⭐ Previous score	🔄 Score change
Performance	🟡 65	🟡 63
Accessibility	🟢 100	🟢 100	–
Best Practices	🟢 100	🟢 100	–
SEO	🟡 85	🟡 85	–
Bug prevention	🟢 100	🟢 100	–
Code style	🟢 99	🟢 99	–
Code coverage	🟡 89	🟡 89	–
Security	🟢 100	🟢 100	–
Updates	🟡 79	🟡 79	–
Custom checks	🟡 67	🟡 67	–

🗃️ Groups

👍 1 group improved

🔌 Plugin	🗃️ Group	⭐ Current score	⭐ Previous score	🔄 Score change
Lighthouse	Performance	🟡 65	🟡 63

19 other groups are unchanged.

🛡️ Audits

👍 6 audits improved, 👎 1 audit regressed, 7 audits changed without impacting score

🔌 Plugin	🛡️ Audit	📏 Current value	📏 Previous value	🔄 Value change
Lighthouse	First Contentful Paint	🟩 1.1 s	🟨 2.0 s
Lighthouse	Max Potential First Input Delay	🟥 470 ms	🟥 670 ms
Lighthouse	Speed Index	🟩 2.4 s	🟩 3.1 s
Lighthouse	First Meaningful Paint	🟩 1.7 s	🟩 2.0 s
Lighthouse	Largest Contentful Paint	🟨 2.7 s	🟨 2.8 s
Lighthouse	Total Blocking Time	🟥 950 ms	🟥 930 ms
Lighthouse	Time to Interactive	🟩 3.2 s	🟩 3.4 s
Lighthouse	Minimizes main-thread work	🟥 3.2 s	🟥 3.8 s
Lighthouse	Metrics	🟩 3181	🟩 3375
Lighthouse	Server Backend Latencies	🟩 20 ms	🟩 60 ms
Lighthouse	JavaScript execution time	🟩 0.1 s	🟩 0.1 s
Lighthouse	Avoids enormous network payloads	🟩 Total size was 432 KiB	🟩 Total size was 432 KiB
Lighthouse	Uses efficient cache policy on static assets	🟨 11 resources found	🟨 11 resources found
Lighthouse	Initial server response time was short	🟩 Root document took 10 ms	🟩 Root document took 10 ms

495 other audits are unchanged.