feat: Default to the device pixel ratio

[ueman]

Resolves #205

Description

The pixel ratio will no longer default to 1. Instead, it defaults to the current device' pixel ratio. This should increase the screenshot fidelity.

Checklist

• [ ] I have updated/added tests for ALL new/updated/fixed functionality.
• [ ] I have updated/added relevant documentation and added code (documentation) comments where necessary.
• [ ] I have updated/added relevant examples in example or documentation.

Breaking Change?

Technically, this is a breaking change since it modifies existing behavior. It's not a breaking change in terms of the API. Since it should have only positive effects and no negative effects, I would say this can be considered a non-breaking change.

• [ ] Yes, this PR is a breaking change.
• [x] No, this PR is not a breaking change.

Related Issues

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[Peetee06]

@ueman this looks like a nice improvement!

It might make sense to add a test to test against 2 different device pixelRatios? This would ensure we are actually using the device's pixel ratio instead of a different hardcoded default value.

Happy to contribute that myself, but don't want to take away from your contribution.

[ABausG]

Finally getting around adding this. I'll be treating this as a breaking change as it may have effects on peoples current widget setup!

Thanks for this @ueman

[ABausG]

@Peetee06 regarding this:

It might make sense to add a test to test against 2 different device pixelRatios? This would ensure we are actually using the device's pixel ratio instead of a different hardcoded default value.

I think it would be a nice improvement and happy to accept it if you add the test cases :)