[token-detection-controller] Remove limit on number of tokens that can be detected

[MajorLift]

Currently, the detectTokens method in TokenDetectionController has a hardcoded upper limit of 2000 on the number of tokens it can process.

• This logic should be rewritten so that any number of tokens can be processed in batches of 1000.
• Unit tests need to be written.

[DhifallahOussema]

Hello, I'm intrested in this issue and wanted to know if I'm still able to solve it.
I thought about a possible approach where we run a loop that splits the tokensToDetect into slices of 1000 token each.
Please let me know if it's still available so I can add a PR.