feat: canvas readiness

[Felix Frank (feliopterix)]

1. Why is this change necessary?

The current implementation can lead to unrecovarable canvas states where webgpu/webgl cannot be initialized by dive.

2. What does this change do, exactly?

Introduce a proper canvas lifecycle manager class that watches over the canvas' readiness.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.23%. Comparing base (5b81007) to head (0ef2bb2).
⚠️ Report is 20 commits behind head on trunk.

Additional details and impacted files

@@            Coverage Diff             @@
##            trunk     #192      +/-   ##
==========================================
+ Coverage   99.14%   99.23%   +0.09%     
==========================================
  Files         135      135              
  Lines        7123     7313     +190     
  Branches     1623     1686      +63     
==========================================
+ Hits         7062     7257     +195     
+ Misses         61       56       -5     

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[Dennis Höllmann (Deristes)]

Hey. Just a question. Why do we have this separate interval in here?
Would it be possible to check if we are still observing the right parent, before every frame instead, so we do it in the requestAnimationFrame loop we already have.

Also instead of having a resize observer, and checking regularly if the observed parent is still the actual parent. Could we not just directly check every frame if the dimensions have changed instead? Or am i missing something?