Implements a function that cleans and filters incoming data from the
new traffic API.
Specifically, it:
- Removes `/edge` data points
- Removes any data from before may 2024, which is the first full month
we have on record
Because all uses of the existing hook do this filtering themselves, I
have added the filtering at the hook level. This is to avoid
forgetting this filtering later. If we find out we need this data, we
can move the filtering.