Allow hiding invite and remove (kick) messages from timeline

### Your use case

#### What would you like to do?

I would like to allow users to choose whether they want to see `$USER1 invited $USER2` and `$USER1 removed $USER2` messages in their timeline.

#### Why would you like to do it?

In our network, we have channels whose membership is managed by a bot who automatically invites new users who belong to specific teams and removes them when they leave that team. Some of our users would prefer not to see these invitation/removal messages as they wish to concentrate on the actual messages.

#### How would you like to achieve it?

Similar to the `Show join/leave messages (invites/removes/bans unaffected)` option, there should be a `Show invite/remove messages` option that is activated by default and can be deactivated.

### Have you considered any alternatives?

The functionality can theoretically be subsumed under the existing `Show join/leave messages [...]` option, but I assume there is a good reason why invites, removes and bans were excluded from it when it was implemented.

### Additional context

I have attempted to create a minimal pull request for this feature: #28247

Relevant existing issues are:

* #13954
* element-hq/element-meta#1779 (which however requests a differentiation between public and private channels, which I consider out-of-scope for this issue)