Noe/fix profiles 0x

[nmalzieu]

Profiles could show as 0x for 1:1 conversations

Our profiles data was a bit messed up

• we were using mmkv + sqlite persistence but not always updating sqlite. I removed the profile table from sqlite to rely only on mmkv (extensions use mmkv only)
• group members addresses are lowercased in the SDK but 1:1 convos peerAddress is formatted. This can lead to inconsistencies; opened a failing test here to showcase the issue: Failing test group members formatting xmtp/xmtp-react-native#497
• changing Converse code to always check the current address + a lowercased & a formatted version to match all cases
• we were still computing a "conversationTitle" for 1:1 based on current profile data and saving it for reuse in notifications => removing that as now the notification extension can directly access the profile data from mmkv and even refresh it when necessary

[cameronvoell]

code updates look good. I also tested on dev network with an account that had existing v2 conversations and groups. Names showed up as expected.

I created an issue in the RN SDK to normalize address capitalization between V2 and groups to help other who would encounter similar issues => xmtp/xmtp-react-native#498

Nice fix!