Makefile: add `-it` to `make start` to allow for Ctrl+C SIGTERM (#6239)

Makefile

@@ -40,6 +40,7 @@ start: ## Start the development environment (use Docker)
 	docker network create --driver bridge $(NETWORK) || true
 	$(foreach extension,$(extensions),$(eval volumes=$(volumes) --volume $(extension):/var/www/FreshRSS/extensions/$(notdir $(extension)):z))
 	docker run \
+		-it \
 		--rm \
 		--volume $(shell pwd):/var/www/FreshRSS:z \
 		$(volumes) \