Add eslint

- Copy eslint configs from TransPlace's moderation bot
- Modify some settings to better fit this project
diff --git a/tsconfig.json b/tsconfig.json
index 0b5e28f..abdf24d 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,4 +1,5 @@
 {
+    "extends": "@tsconfig/node16-strictest-esm/tsconfig.json",
     "compilerOptions": {
         "module": "esnext",
         "target": "es2020",
@@ -13,4 +14,4 @@
     },
     "include": ["src/**/*", "installer.js"],
     "exclude": []
-}
\ No newline at end of file
+}