Fix Safari images

[merapi]

Description

We have found & fix this issue in Safari: GoogleForCreators/web-stories-wp#12432

decode() support is great so we probably don't need a fallback, but I'm happy to hear your thoughts.

Also, I think the readme should be updated because it works pretty well in Safari.

Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Enhancement (changes that improvement of current feature or performance)
• Refactoring (changes that neither fixes a bug nor adds a feature)
• Test Case (changes that add missing tests or correct existing tests)
• Code style optimization (changes that do not affect the meaning of the code)
• Docs (changes that only update documentation)
• Chore (changes that don't modify src or test files)

Self Check before Merge

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

Base: 67.05% // Head: 67.05% // No change to project coverage 👍

Coverage data is based on head (8a51ae5) compared to base (471ad8d).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #325   +/-   ##
=======================================
  Coverage   67.05%   67.05%           
=======================================
  Files          10       10           
  Lines         513      513           
  Branches      119      119           
=======================================
  Hits          344      344           
  Misses        120      120           
  Partials       49       49           

Impacted Files	Coverage Δ
src/embed-images.ts	96.66% <100.00%> (ø)
src/util.ts	63.47% <100.00%> (ø)

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[vivcat]

🎉 This PR is included in version 1.10.10 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀