feat: add support for custom blog url routing, update blog tag filtering, delete /blog/tag/[tagId] route

[jordanarldt]

What/Why?

• Add support for custom blog URL routing - we were generating links to the blog based on the BC URL for the blog index, but had no routing for it.
• Now that custom blog URL routing will work, we needed to refactor blog tag filtering to be a query parameter
• Delete /blog/tag/[tagId] route (replaced with /blog?tag=[tag] query param

Testing

Blog posts, blog index, tag filtering, and blog pagination all work as expected:

Screen.Recording.2024-12-20.at.5.11.37.PM.mov

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[migueloller]

Looks good but I think we should use nuqs for search param parsing and serialization to avoid things blowing up when encountering an unexpected value for the tag search param (e.g., passing multiple tags or passing an empty value, etc.)

[github-actions]

⚡️🏠 Lighthouse report

Lighthouse ran against https://catalyst-latest-mtyi0v99d-bigcommerce-platform.vercel.app

🖥️ Desktop

We ran Lighthouse against the changes on a desktop and produced this report. Here's the summary:

Category	Score
🟢 Performance	97
🟢 Accessibility	92
🟢 Best practices	100
🟠 SEO	82

📱 Mobile

We ran Lighthouse against the changes on a mobile and produced this report. Here's the summary:

Category	Score
🟠 Performance	81
🟢 Accessibility	92
🟢 Best practices	100
🟠 SEO	85