fix: refresh images in dev mode when they change

[benmccann]

fixes #449

[changeset-bot]

🦋 Changeset detected

Latest commit: 4e8c0a3

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
imagetools-core	Major
vite-imagetools	Patch

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[codecov]

Codecov Report

Merging #648 (4e8c0a3) into main (11a406b) will decrease coverage by 0.81%.
The diff coverage is 36.36%.

@@            Coverage Diff             @@
##             main     #648      +/-   ##
==========================================
- Coverage   94.41%   93.60%   -0.81%     
==========================================
  Files          33       32       -1     
  Lines        1181     1188       +7     
  Branches      188      188              
==========================================
- Hits         1115     1112       -3     
- Misses         66       76      +10     

Flag	Coverage Δ
imagetools-core	97.01% <ø> (+0.95%)	⬆️
vite-imagetools	78.44% <36.36%> (-7.50%)	⬇️

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Files	Coverage Δ
packages/core/src/index.ts	100.00% <ø> (ø)
packages/vite/src/index.ts	85.56% <80.00%> (-0.16%)	⬇️
packages/vite/src/utils.ts	35.48% <28.57%> (-64.52%)	⬇️