Fix error messages, auth routes, and remove category unique constraint (#293)

* Fix error messages, auth routes, and remove category unique constraint

* Run prepare

* Remove debug secrets

* Fix team member editing

src/database/models/categories.rs

@@ -226,7 +226,6 @@ impl<'a> CategoryBuilder<'a> {
             "
             INSERT INTO categories (category, project_type, icon)
             VALUES ($1, $2, $3)
-            ON CONFLICT (category) DO NOTHING
             RETURNING id
             ",
             self.name,