Remove junk + add eslint and basic types

Author: mkrl

.eslintrc.json

@@ -0,0 +1,24 @@
+{
+    "env": {
+        "browser": true,
+        "es6": true
+    },
+    "extends": [
+        "standard"
+    ],
+    "globals": {
+        "Atomics": "readonly",
+        "SharedArrayBuffer": "readonly"
+    },
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": 2018,
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+        "@typescript-eslint/no-explicit-any": 2
+    }
+}

lefthook.yml

@@ -0,0 +1,6 @@
+ pre-commit:
+   parallel: true
+   commands:
+     eslint:
+       glob: "*.{ts}"
+       run: yarn eslint {staged_files}