Canvas: Fix linter errors

Change-Id: I602c1562d4ab2d948bb4dcf6caf66f185585d720
diff --git a/apps/canvas/front/eslint.config.js b/apps/canvas/front/eslint.config.js
index 092408a..545cef9 100644
--- a/apps/canvas/front/eslint.config.js
+++ b/apps/canvas/front/eslint.config.js
@@ -23,6 +23,14 @@
         'warn',
         { allowConstantExport: true },
       ],
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        {
+          "argsIgnorePattern": "^_$",
+          "varsIgnorePattern": "^_$",
+          "caughtErrorsIgnorePattern": "^_$",
+        }
+      ]
     },
   },
 )