do dev-time installations 'at once'

Author: NiloCK

packages/cli/package.json

@@ -27,7 +27,7 @@
         "lint": "npx eslint .",
         "lint:fix": "npx eslint . --fix",
         "lint:check": "npx eslint . --max-warnings 0",
-        "try:init": "node dist/cli.js init testproject --dangerously-clobber --no-interactive --data-layer static --import-course-data --import-server-url http://localhost:5984 --import-username admin --import-password password --import-course-ids 2aeb8315ef78f3e89ca386992d00825b && cd testproject && npm i && npm install --save-dev @vue-skuilder/cli@file:.. && npm install @vue-skuilder/db@file:../../db && npm install @vue-skuilder/courses@file:../../courses && npm install @vue-skuilder/common-ui@file:../../common-ui"
+        "try:init": "node dist/cli.js init testproject --dangerously-clobber --no-interactive --data-layer static --import-course-data --import-server-url http://localhost:5984 --import-username admin --import-password password --import-course-ids 2aeb8315ef78f3e89ca386992d00825b && cd testproject && npm i && npm install --save-dev @vue-skuilder/cli@file:.. && npm install @vue-skuilder/db@file:../../db @vue-skuilder/courses@file:../../courses @vue-skuilder/common-ui@file:../../common-ui"
     },
     "keywords": [
         "cli",