feat!: convert project to typescript

BREAKING CHANGE: drop flow types, remove null from optional input property types

package.json

@@ -29,26 +29,28 @@
     "@babel/eslint-parser": "^7.19.1",
     "@babel/node": "^7.19.1",
     "@babel/plugin-proposal-async-generator-functions": "^7.19.1",
-    "@babel/plugin-syntax-flow": "^7.14.5",
     "@babel/plugin-transform-react-jsx": "^7.19.0",
     "@jcoreio/eslint-plugin-implicit-dependencies": "^1.1.1",
     "@jcoreio/toolchain": "^4.5.5",
     "@jcoreio/toolchain-circle": "^4.5.5",
     "@jcoreio/toolchain-esnext": "^4.5.5",
-    "@jcoreio/toolchain-flow": "^4.5.5",
     "@jcoreio/toolchain-mocha": "^4.5.5",
     "@jcoreio/toolchain-semantic-release": "^4.5.5",
     "@jcoreio/toolchain-typescript": "^4.5.5",
+    "@types/chai": "^4.0.0",
+    "@types/fs-extra": "^9.0.0",
+    "@types/inquirer": "^8.0.0",
+    "@types/lodash": "^4.17.4",
+    "@types/mocha": "^10.0.0",
+    "@types/verror": "^1.10.10",
     "@typescript-eslint/eslint-plugin": "^7.6.0",
     "@typescript-eslint/parser": "^7.6.0",
     "chai": "^4.3.7",
     "copy": "^0.3.2",
     "cross-env": "^7.0.3",
     "eslint": "^8.56.0",
     "eslint-config-prettier": "^8.5.0",
-    "eslint-plugin-flowtype": "^8.0.3",
     "eslint-plugin-no-only-tests": "^3.1.0",
-    "flow-bin": "^0.125.0",
     "mocha": "^10.2.0",
     "rimraf": "^3.0.2",
     "strip-ansi": "^6.0.0",