chore: update feature status in readme

[dyladan]

Feature status was very out of date and included API and context which is no longer in this repo.

[codecov]

Codecov Report

Merging #2168 (1f9eba1) into main (c4341c3) will increase coverage by 0.02%.
The diff coverage is n/a.

❗ Current head 1f9eba1 differs from pull request most recent head f867b71. Consider uploading reports for the commit f867b71 to get more accurate results

@@            Coverage Diff             @@
##             main    #2168      +/-   ##
==========================================
+ Coverage   92.75%   92.77%   +0.02%     
==========================================
  Files         140      140              
  Lines        4997     4997              
  Branches     1028     1028              
==========================================
+ Hits         4635     4636       +1     
+ Misses        362      361       -1     

Impacted Files	Coverage Δ
...emetry-core/src/platform/node/RandomIdGenerator.ts	93.75% <0.00%> (+6.25%)	⬆️