chore(build): lets make test install playwright

Also adds a note in the readme about it

Makefile

@@ -40,7 +40,11 @@ dist: lib/opentdf-sdk-$(version).tgz
 audit:
 	for x in $(pkgs); do (cd $$x && npm audit --omit dev) || exit 1; done
 
-format license-check lint test: ci
+format license-check lint: ci
+	for x in $(pkgs); do (cd $$x && npm run $@) || exit 1; done
+
+test: ci
+	cd web-app && npx install playwright
 	for x in $(pkgs); do (cd $$x && npm run $@) || exit 1; done
 
 doc:

README.md

@@ -107,6 +107,9 @@ make test
 make start
 ```
 
+Note: `make test` will install playwright and any necessary browser components,
+which may be several hundred megabytes in size.
+
 ## Use the platform
 
 Version 2 of this library adds support for ABAC management tasks.