chore: Rename Projects to Templates (#880)

Customer feedback indicated projects was a confusing name.
After querying the team internally, it seemed unanimous
that it is indeed a confusing name.

Here's for a lil less confusion @ashmeer7 🥂

coderd/database/queries/workspacebuilds.sql

@@ -62,7 +62,7 @@ INSERT INTO
 		created_at,
 		updated_at,
 		workspace_id,
-		project_version_id,
+		template_version_id,
 		before_id,
 		"name",
 		transition,