chore: Update devcontainer.json to pin vue.volar to older version

Author: NGPixel

.devcontainer/devcontainer.json

@@ -23,7 +23,8 @@
                 "dbaeumer.vscode-eslint",
                 "eamodio.gitlens",
                 "editorconfig.editorconfig",
-                // "vue.volar", # causes crash in devcontainer...
+                // Newer volar >=3.0.0 causes crashes in devcontainers
+                "vue.volar@2.2.10",
                 "mrmlnc.vscode-duplicate",
                 "ms-azuretools.vscode-docker",
                 "ms-playwright.playwright",