Projects and Diseases placeholder application commands (#17)

* fix module name in backup

* save projects to persistent_term

* retrieve projects on bot startup

* remove commented out code

* register project autocomplete

* placeholder text for project

* placeholder disease command

TODO

@@ -3,10 +3,12 @@
 ## 🚀 High Priority
 
 - [x] Update deps and run on Elixir 1.18 / otp 28
+- [ ] Pull projects on a regular basis
+- [ ] identify by project
+- [ ] identify by country
 - [ ] Run static analysis tools and fix code
 - [ ] Increase test coverage
 - [ ] Fix spec errors
-- [ ] Improve error return message
 
 ## 📦 Medium Priority