Update the message previews text displayed in Favourites/People/Rooms tabs

[pixlwave]

Following on from https://github.com/vector-im/element-ios/issues/4451, the strings displayed in the rooms lists can be unhelpful for some message types.

Media shows without any indication of the attachment type:

Alice: File Name

Replies show who was replied to but no content:

Alice: In reply to Bob

It would be nice to match the strings used for notifications in #4132, however it would be worth thinking about this a bit given the current sender name prefix style:

Alice: replied Hello Alice: sent a Voice Message

@niquewoodhouse I think you mentioned about whether having the sender name has value in DMs for example.

Update: An additional message type that needs to be considered is when a room has been created but has no other events that should be displayed. Using the creation event gives the string:

∙ You created and configured the room.

Screenshot of these:

[niquewoodhouse]

Will benchmark against

• Telegram
• Whatsapp
• Discord
• Slack