Updated packages. Changed date picker package to Day.JS and applied it across whole app.

backend/eslint.config.js

@@ -0,0 +1,21 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  { ignores: ['dist', 'node_modules'] },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ['**/*.ts'],
+    rules: {
+      'no-unused-vars': 'off',
+      '@typescript-eslint/no-unused-vars': ['warn', {
+        argsIgnorePattern: '^_',
+        varsIgnorePattern: '^_',
+        ignoreRestSiblings: true,
+        args: 'after-used'
+      }],
+      '@typescript-eslint/no-explicit-any': 'warn',
+    },
+  },
+);