fix: Fix performance dropping rapidly after selecting a text for some time

[marc2332]

Take the cursor position and selections the moment it is measured instead of received by use_editable to avoid unnecessary measurements

Closes #623

[codecov]

Codecov Report

Attention: Patch coverage is 98.85057% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 73.14%. Comparing base (128b962) to head (25ae711).
Report is 1 commits behind head on main.

❗ Current head 25ae711 differs from pull request most recent head 4437181

Please upload reports for the commit 4437181 to get more accurate results.

Files	Patch %	Lines
crates/core/src/dom/doms.rs	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #624      +/-   ##
==========================================
+ Coverage   73.00%   73.14%   +0.14%     
==========================================
  Files         192      192              
  Lines       19151    19091      -60     
==========================================
- Hits        13981    13965      -16     
+ Misses       5170     5126      -44     

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