chore: init tsslint (#31209)

Co-authored-by: Johnson Chu <johnsoncodehk@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

web/tsslint.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig, importESLintRules } from '@tsslint/config'
+
+// Run `npx tsslint-docgen` to generate documentation for the configured rules.
+
+export default defineConfig({
+  rules: {
+    ...await importESLintRules({
+      'react-x/no-leaked-conditional-rendering': 'warn',
+    }),
+  },
+})