Change the default emoji list

### Your use case

#### What would you like to do?
It would be nice to be able to configure the default emojis that appear, on long pressing on a message. Currently the emojis that appear by default are : :+1: :-1: :smile: :tada: :confused: :heart: :rocket: :eyes:
#### Why would you like to do it?
Some users coming from other messaging apps are used to other emojis and picking the one they want in Element Android is only possible by, long pressing > Add Reaction > pick emoji . Facebook messenger for example is using :heart: :laughing: :open_mouth: :cry: :angry: :+1:
#### How would you like to achieve it?
A preferences menu could be added to select the default emojis a user wants. Similar to messenger as shown below:

### Have you considered any alternatives?

_No response_

### Additional context

_No response_