feat(img): allow generating random image by default

[raflymln]

Previously, the resulting image would be cached by the browser. So, when using randImg() on a set of components like React or Solid, the images between components will be the same. I just added the random option as described at https://picsum.photos in the Advanced Usage section.

The option random should be enabled as it would commonly used in this situation.

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PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
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Does this PR introduce a breaking change?

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• No

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