Clarify API Account token limits

### Proposed changes

https://developers.cloudflare.com/fundamentals/api/reference/limits/

### Subject Matter

Whether Account API Token limit is per account or per tenant

### Content Location

https://developers.cloudflare.com/fundamentals/api/reference/limits/
There is an API Token limits chart.

The chart states "Account API token quota 500"
It is unclear if that is per account or per tenant. Based on a help discussion, I was told it is per account. If that is correct, suggestion is:
~`Account API token quota per tenant`~
Edit (mis-typed the first time): `Account API token quota per account`

### Additional information

_No response_