- Fixes scrolling to an event not being reliable
- Adds new /goto command that can open URLs, go to events, or go to message indexes.
- Refactored ChatPage::handleMatrixUri() to contain the handling originally in Nheko::openLink(), and makes it return a boolean based on whether the URL was handled internally or not.

- Now scrolls entire profile instead of only device list, improving the experience on smaller screens
- Fixed centering of room name
- Allow profile to be sized smaller to match the new scrolling behavior
- Silenced warning about room being null for global profiles
- Matrix URLs now open global profiles instead of room-specific profiles if the user is not in the currently opened room
- Opening global profile from room specific profile now uses openGlobalUserProfile function instead of reinventing the wheel

There are probably a few things wrong with this, but I'm going to call it good enough for an initial commit

fixes #657

This also adds a property `roomId` to TimelineModel.

Something is still wrong on shutdown, need to debug that.
And CI will fail.

In narrow view, a room can be selected even if the view currently only
shows the room list and the timeline is hidden.
This commit ensures that in this case, notifications are not suppressed.