message: plugin-input-exercise: declare of dependencies as dependencies
diff: "build": "tsdx build --tsconfig tsconfig.prod.json"
  },
  "dependencies": {
  + "@types/algebra.js": "^0.2.0",
  + "@types/string": "^0.0.29",
  "algebra.js": "^0.2.0",
  "string": "^3.0.0"
  },
  "devDependencies": {
  "@edtr-io/core": "^0.8.1",
  "@edtr-io/ui": "^0.8.0",
  - "@types/algebra.js": "^0.2.0",
  "@types/ramda": "^0.26.1",
  - "@types/string": "^0.0.29",
  "ramda": "^0.26.1",
  "react": "^16.8.0",
  "react-dom": "^16.8.0"
  