Provide UI Feedback when "Jump To Date" is in progress

### Your use case

#### What would you like to do?
When selecting a date to jump to, provide feedback that the jump is in progress in case there is a delay.

#### Why would you like to do it?
Currently, when selecting a jump that takes a while to do (Beginning of Room for example), there is nothing on the UI indicating that Element is working on the jump. If you wait a while, and even go to move to another room, it will eventually do the jump, but this can be confusing.

### Have you considered any alternatives?

The best alternative would be if Jump To Date was always fast enough to never need a "loading" indicator, but it's understandable that it takes time.

### Additional context

_No response_