docs/remove label prop in progress bar docs

[esaltzm1]

Linked Issue

Closes #2516

Description

This PR removes the label prop from the example code within the documentation for the ProgressBar component. There is no label prop in the ProgressBar component.

link to ProgressBar and its props: https://github.com/skeletonlabs/skeleton/blob/dev/packages/skeleton/src/lib/components/ProgressBar/ProgressBar.svelte

link to documentation: https://www.skeleton.dev/components/progress-bars

Note: the linting problems are in files I did not touch. Let me know if it's helpful for me to include lint fixes for those files in this PR.

Changsets

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Checklist

Please read and apply all contribution requirements.

• This PR targets the dev branch (NEVER master)
• Documentation reflects all relevant changes
• Branch is prefixed with: docs/, feat/, chore/, bugfix/
• Ensure Svelte and Typescript linting is current - run pnpm ci:check
• Ensure Prettier linting is current - run pnpm format
• All test cases are passing - run pnpm test
• Includes a changeset (if relevant; see above)

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Latest commit: c829b30

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[endigo9740]

This is great, thank you @esaltzm1