Method to warn of issues caused by bookmarking creating URLs too long for GA4

## Is your feature request related to a problem? Please describe.
If URLs get too long, GA4 can stop tracking the analytics of a dashboard and you get errors like the following in the Developer tools console:

## Describe the solution you'd like
A warning output to the R console reflecting that there's an issue. Most dashboard developers won't know to look in the developer tools console, so need it flagging another way.

## Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

## Additional context
Add any other context or screenshots about the feature request here.

No files, tests, or entry points are named in the issue. Start by reproducing a bookmarked dashboard URL that is too long for GA4 and determine where the failure can be detected; done means an actionable warning is emitted to the R console before or when tracking is affected.

Written by the indexing model from the issue text.