feat(auth): added discord & github authentication methods (#18)

* feat(auth): added discord & github authentication methods

* chore(format): formatted edited files

* docs: add Discord and GitHub OAuth environment variables to README

* feat: add Discord and GitHub OAuth client credentials to environment config

* refactor: migrate social provider types to better-auth package

* feat: return configured social provider names from auth endpoint

* refactor: simplify socialProvidersPlugin by removing nested function and condensing return

packages/auth/tsconfig.json

@@ -1,6 +1,8 @@
 {
   "extends": "@kan/tsconfig/internal-package.json",
-  "compilerOptions": {},
+  "compilerOptions": {
+    "jsx": "react-jsx"
+  },
   "include": ["*.ts", "src"],
   "exclude": ["node_modules"]
 }