show contact's or user's icon in more places

src/db/tables/contacts.ts

@@ -2,6 +2,7 @@ export interface Contact {
   did: string;
   name?: string;
   nextPubKeyHashB64?: string; // base64-encoded SHA256 hash of next public key
+  profileImageUrl?: string;
   publicKeyBase64?: string;
   seesMe?: boolean;
   registered?: boolean;