Fix Conflict Resolution! Add Ability To Add Comments and Photos

[Martin280]

The conflict resolution used to let you add more messages to the chain now its a single message and then you're messaging the guest. This is silly. Please put the functionality back in that allows us hosts to add additional messages to the same request message chain so there's a single record. This is necessary for example as I've just found the product name for the sheets the guest stained and I wanted to go back in and note it for the guest and for airbnb in a single place. But it doesn't allow it. Also, make it so that we can add additional images after the initial request. 

[Alice-and-Jeff0]

@Martin280 - you can make suggestions to the website in Host Voice: https://community.withairbnb.com/t5/Host-Voice/idb-p/host-voice

[Martin280]

Thanks! Added it there.