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• The PR title follows our guidelines: https://github.com/NativeScript/NativeScript/blob/master/tools/notes/CONTRIBUTING.md#commit-messages.
• There is an issue for the bug/feature this PR is for. To avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it.
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• All existing tests are passing: https://github.com/NativeScript/NativeScript/blob/master/tools/notes/DevelopmentWorkflow.md#running-unit-tests-application.
• Tests for the changes are included - https://github.com/NativeScript/NativeScript/blob/master/tools/notes/WritingUnitTests.md.

What is the current behavior?

Passing a string (e.g. "300") to width or height in ImageAssetOptions on Android results in a crash on older API levels (e.g. API 22), with the error:

IllegalArgumentException: bitmap size exceeds 32 bits

This happens because the dimensions are not parsed properly, and Android attempts to decode the image with invalid bounds.

What is the new behavior?

Ensures that width and height are explicitly parsed using parseInt() if they are strings.
Falls back to screen dimensions (Screen.mainScreen.widthPixels/heightPixels) if parsing fails.
Prevents runtime crashes.

Fixes/Implements/Closes #[6289].