`Fix available` tags are not accurate when multiple ecosystems are combined together

[hogo6002]

The vulnerability list page on OSV.dev currently displays a Fix available tag for vulnerabilities if at least one affected package has a fix. But when filtering vulnerabilities by a specific ecosystem, the Fix available tag remains the same even if the fix is only available for a package in a different ecosystem. It would be more accurate to display the Fix available tag based on the currently selected ecosystem filter.

Example: https://osv.dev/vulnerability/CVE-2024-43374 (no fix for Debian)

[github-actions]

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