B2B-48: Added public message get functions and generated local supabase conf (#1)

* B2B-48: Added public message get functions and local supabase conf

* only get the message list with the highest id

* handle case when no public list messages found

* change function name to reflect behavior more clearly

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Co-authored-by: Helena <helena@Helenas-MacBook-Pro.local>

.env.example

@@ -2,3 +2,7 @@
 # https://app.supabase.com/project/_/settings/api
 NEXT_PUBLIC_SUPABASE_URL=your-project-url
 NEXT_PUBLIC_SUPABASE_ANON_KEY=your-anon-key
+
+MEDIPOST_URL=your-medpost-url
+MEDIPOST_USER=your-medpost-user
+MEDIPOST_PASSWORD=your-medpost-password