minor update (#195)

* refactor: update package.json dependencies and build tools

* feat: bump up geist font version

* refactor: non-nullable-type-assertion-style bypass

* chore: bump up version in package.json

* docs: update get started doc

* styles: prettier format

.eslintrc.json

@@ -22,6 +22,7 @@
     "arrow-body-style": "off",
     "prefer-arrow-callback": "off",
     "import/no-cycle": "error",
+    "@typescript-eslint/non-nullable-type-assertion-style": "off",
     "sort-imports": [
       "error",
       {