fix(ImageViewer): Only call document.preventDefault() when dragging

[apiel51]

to: @williaster @alecklandgraf

Description

document.preventDefault should only be called when dragging is true, otherwise it's impossible to highlight text and in the document

Motivation and Context

Running into this error in Torch

Testing

Tested locally in Storybook, added a text component above <ImageViewer />, tried to highlight and it didn't work. After this change, highlighting worked.

Screenshots

No visual diff

Checklist

• My code follows the style guide of this project.
• I have updated or added documentation accordingly.
• I have read the CONTRIBUTING document.

[airbnb-bot]

Size Changes

Package	Diff	ESM	Prev ESM	CJS	Prev CJS
core	-0.0%	567.33 KB	567.33 KB	709.46 KB	709.46 KB

Compared to master. File sizes are unminified and ungzipped.

View raw build stats

Previous (master)

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  "app-shell": {
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  "composer": {
    "esm": 68247,
    "lib": 101805
  },
  "core": {
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    "lib": 726483
  },
  "forms": {
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    "lib": 49298
  },
  "icons": {
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    "lib": 205626
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  "layouts": {
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    "lib": 20770
  },
  "metrics": {
    "esm": 5467,
    "lib": 7729
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  "test-utils": {
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    "lib": 5937
  }
}

Current

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  },
  "app-shell": {
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    "lib": 19874
  },
  "composer": {
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    "lib": 101805
  },
  "core": {
    "esm": 580945,
    "lib": 726482
  },
  "forms": {
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    "lib": 49298
  },
  "icons": {
    "esm": 156355,
    "lib": 205626
  },
  "layouts": {
    "esm": 15298,
    "lib": 20770
  },
  "metrics": {
    "esm": 5467,
    "lib": 7729
  },
  "test-utils": {
    "esm": 4279,
    "lib": 5937
  }
}