tari-project / tari / 5573250331

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feat: chat message fetching pagination (#5594)

Description
---
Previously the only function to get messages was `get_all_messages`
which return all related records in the db. Now we've added pagination
and you can select the amount of results per page, and what page you'd
like returned. Results are now ordered by most recent received.

Motivation and Context
---
`get_all_messages` has the potential to get very slow and ddos the
client. Limiting the amount returned and allowing to change the
requested amounts makes things better to deal with.

How Has This Been Tested?
---
Test added for pagination.

What process can a PR reviewer use to test or verify this change?
---
Tests pass.

Breaking Changes
---

- [x] None
- [ ] Requires data directory on base node to be deleted
- [ ] Requires hard fork
- [ ] Other - Please specify

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