chore: improve error messages

[Dorukyum]

Summary

Closes #1730.

Information

• [ ] This PR fixes an issue.
• [ ] This PR adds something new (e.g. new method or parameters).
• [ ] This PR is a breaking change (e.g. methods or parameters removed/renamed).
• [x] This PR is not a code change (e.g. documentation, README, typehinting, examples, ...).

Checklist

• [x] I have searched the open pull requests for duplicates.
• [ ] If code changes were made then they have been tested.
  • [ ] I have updated the documentation to reflect the changes.
• [ ] If type: ignore comments were used, a comment is also left explaining why.
• [x] I have updated the changelog to include these changes.

[Dorukyum]

Apparently there's an inconsistency with putting dots at the end of error messages too. I will update this pull request to fix that.

[Lulalaby]

We might do another pr soon to look through all messages