fix(useWebNotification): condition check on permission

[SampsonCrowley]

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As the VueUse audience continues to grow, we have been inundated with an overwhelming number of feature requests and pull requests. As a result, maintaining the project has become increasingly challenging and has stretched our capacity to its limits. As such, in the near future, we may need to slow down our acceptance of new features and prioritize the stability and quality of existing functions. Please note that new features for VueUse may not be accepted at this time. If you have any new ideas, we suggest that you first incorporate them into your own codebase, iterate on them to suit your needs, and assess their generalizability. If you strongly believe that your ideas are beneficial to the community, you may submit a pull request along with your use cases, and we would be happy to review and discuss them. Thank you for your understanding.

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Description

show should bail if not supported or permission not granted. not and

Additional context

related to #3314

fixing a logic branch from #3325

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🤖 Generated by Copilot at 1d30339

Fixed a bug in useWebNotification that caused errors when notifications were not supported or allowed. Changed the condition to use || instead of && in packages/core/useWebNotification/index.ts.

🤖 Generated by Copilot at 1d30339

• Fix a bug where notifications would be shown even if not supported or permitted (link)

[jamols09]

Hi the useWebNotification is not working on the website