Introduce Resource Handle Deleted Function

[alexanderkiel]

The new blaze.db.api/deleted? function makes it more easy to detect whether a resource handle is deleted. Before that we had to test if the :op of the handle equals :deleted.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.95%. Comparing base (187aaba) to head (ee1eb83).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2211   +/-   ##
=======================================
  Coverage   94.95%   94.95%           
=======================================
  Files         330      330           
  Lines       20249    20252    +3     
  Branches      483      482    -1     
=======================================
+ Hits        19227    19231    +4     
  Misses        539      539           
+ Partials      483      482    -1     

see 3 files with indirect coverage changes

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles