Update docs for Google Analytics 4

[nickmccurdy]

What?

Update docs for Google Analytics 4

Why?

This page doesn't make it clear which script is recommended, and has code that's outdated and erroring.

How?

Update headings and clean up bad code.

[nickmccurdy]

@leerob I forgot that Script is necessary for hydration, so I'll revert this for now. However, I'm concerned that if users try to call the gtag or ga function, it may not be defined because these scripts are async. Should we run these scripts synchronously or with strategy="beforeInteractive"?

[ijjk]

Allow CI Workflow Run

• approve CI run for commit: 022b610

Note: this should only be enabled once the PR is ready to go and can only be enabled by a maintainer

[ijjk]

Allow CI Workflow Run

• approve CI run for commit: 022b610

Note: this should only be enabled once the PR is ready to go and can only be enabled by a maintainer

[leerob]

Can you explain why afterInteractive was removed?

[nickmccurdy]

Because it's the default behavior, and I wanted to make the code easier to read and understand. It's also easier to compare with the Google Analytics docs which don't use Next features.

Please let me know if a different strategy should be used (original question).