Rework Makefile to remove npm-ci target

This seems cleaner than having a target for a single command
$(MAKE) is the recommended way rather than simply make

Makefile

@@ -10,10 +10,14 @@ dev: start
 	docker compose up -d ui-builder
 
 .PHONY: playwright-tests-ci
-playwright-tests-ci: npm-ci playwright-tests
+playwright-tests-ci:
+	npm ci
+	$(MAKE) playwright-tests
 
 .PHONY: playwright-tests
 playwright-tests:
+	npm install
+
     # stop any containers that are running
 	docker compose down
 
@@ -71,10 +75,6 @@ next-dev: build
 build-next:
 	docker compose build next-proxy next-app
 
-.PHONY: npm-ci
-npm-ci:
-	npm ci
-
 .PHONY: clean
 clean:
 	docker compose down