Moving `Events` interface methods to `Messages` interface

[LiranCohen]

• [x] Rename EventsQuery to MessagesQuery
• [x] Rename EventsSubscribe to MessagesSubscribe
• [x] Move Events types to Messages types
• [x] Move Events grant authorization to Messages grant authorization

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 98.69%. Comparing base (592597a) to head (781ebe1).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #773 +/- ## ========================================== - Coverage 98.69% 98.69% -0.01% ========================================== Files 74 73 -1 Lines 11268 11258 -10 Branches 1609 1609 ========================================== - Hits 11121 11111 -10 Misses 141 141 Partials 6 6 ```

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