Have your pins persist across all clients (desktop, android, web)

If you pin any number of contacts, these pins are persisted across all clients. Maybe add a setting to toggle this on/off. https://discord.com/channels/640229510662455326/1088639185474306189

#### Issue Metadata

- User: `@marvinjm#9290`
- Context: https://discord.com/channels/640229510662455326/1088639185474306189/1102698209811374130