Add vue-tsc (#32601)

As per https://vuejs.org/guide/typescript/overview#overview,
typescript's `tsc` does not support importing `.vue` files from `.ts`
files, so we need to use `vue-tsc` which patches in that support. Added
a convenience alias `make tsc` to run it.

Makefile

@@ -377,12 +377,12 @@ lint-backend-fix: lint-go-fix lint-go-vet lint-editorconfig
 .PHONY: lint-js
 lint-js: node_modules
 	npx eslint --color --max-warnings=0 --ext js,ts,vue $(ESLINT_FILES)
-#	npx tsc
+#	npx vue-tsc
 
 .PHONY: lint-js-fix
 lint-js-fix: node_modules
 	npx eslint --color --max-warnings=0 --ext js,ts,vue $(ESLINT_FILES) --fix
-#	npx tsc
+#	npx vue-tsc
 
 .PHONY: lint-css
 lint-css: node_modules
@@ -451,6 +451,10 @@ lint-templates: .venv node_modules
 lint-yaml: .venv
 	@poetry run yamllint .
 
+.PHONY: tsc
+tsc:
+	npx vue-tsc
+
 .PHONY: watch
 watch:
 	@bash tools/watch.sh