Remove experimental flags from Embed Optimizer and Image Prioritizer

[westonruter]

The currently-released version of Optimization Detective plugin is 1.0.0-beta1. Optimization Detective, Embed Optimizer, and Image Prioritizer all 20,000+ active installs respectively. Analysis of these plugins on sites in HTTP Archive has shown them to be effective at improving performance. The plugins running in the wild has not resulted in major issues that would put their stability into question. Therefore, it's time to remove the experimental labels from these plugins.

In a subsequent PR for the next Performance Lab release we may bump Image Optimizer and Embed Optimizer to 1.0.0-beta1 as another indication of the maturity for these plugins.

[github-actions]

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Co-authored-by: westonruter <[email protected]>
Co-authored-by: felixarntz <[email protected]>

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.92%. Comparing base (e793289) to head (b8d1019).
Report is 15 commits behind head on trunk.

Additional details and impacted files

@@           Coverage Diff           @@
##            trunk    #1846   +/-   ##
=======================================
  Coverage   65.92%   65.92%           
=======================================
  Files          88       88           
  Lines        6885     6885           
=======================================
  Hits         4539     4539           
  Misses       2346     2346           

Flag	Coverage Δ
multisite	65.92% <100.00%> (ø)
single	38.22% <100.00%> (ø)

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[felixarntz]

@westonruter LGTM, just one nit-pick.

[felixarntz]

Nit-pick, but we may want to keep these alphabetically sorted (I.e. integrate in the list items above), with experimental plugins at the end.

[westonruter]

Yes, good point. Fixed in b8d1019