refactor(channel): simplify pushName assignment logic

Author: vduggen

src/api/services/channel.service.ts

@@ -811,7 +811,7 @@ export class ChannelStartupService {
             "Message"."key"->>'remoteJid' as "remoteJid",
             CASE
               WHEN "Message"."key"->>'remoteJid' LIKE '%@g.us' THEN COALESCE("Chat"."name", "Contact"."pushName")
-              ELSE COALESCE("Contact"."pushName", "Message"."pushName")
+              ELSE "Contact"."pushName"
             END as "pushName",
             "Contact"."profilePicUrl",
             COALESCE(