This commit adds support for images in protobuf messages.
The client can specify a path which will be used to load the image
and set the corresponding fields.
This makes the assumption that the RCP server runs on the same machine
as the client and they have access to the same files. This holds
currently for both status-react and status-console-client, we could
revisit and adds an upload if that changes in the future.
Why make the changes?
Mainly performance, those fields are almost always present in the
database but they are re-calculated on load by the client as it does not
have necessarily access to it.
What has changed?
- Remove `_legacy` persistence namespaces as it's a vestige of the
initial move frmo status-react to status-go
- Pulling chats is now a join with contacts to add contact & alias
