docs: update vscode config

frontend/.vscode.example/extensions.json

@@ -1,14 +0,0 @@
-{
-  "recommendations": [
-    "codezombiech.gitignore",
-    "dbaeumer.vscode-eslint",
-    "editorconfig.editorconfig",
-    "vue.volar",
-    "vue.vscode-typescript-vue-plugin",
-    "lokalise.i18n-ally",
-    "mgmcdermott.vscode-language-babel",
-    "mikestead.dotenv",
-    "Syler.sass-indented",
-    "zixuanchen.vitest-explorer"
-  ]
-}

frontend/.vscode.example/settings.json

@@ -1,34 +0,0 @@
-{
-  "eslint.packageManager": "pnpm",
-  "editor.formatOnSave": false,
-  "editor.codeActionsOnSave": {
-    "source.fixAll": true
-  },
-  "eslint.format.enable": true,
-	"[javascript]": {
-		"editor.defaultFormatter": "dbaeumer.vscode-eslint"
-	},
-	"[typescript]": {
-		"editor.defaultFormatter": "dbaeumer.vscode-eslint"
-	},
-
-  // https://eslint.vuejs.org/user-guide/#editor-integrations
-  "eslint.validate": [
-    "javascript",
-    "javascriptreact",
-    "vue"
-  ],
-
-  "volar.completion.preferredTagNameCase": "pascal",
-
-  // disable vetur in case it is installed
-  "vetur.validation.template": false,
-
-  // i18n ally
-  "i18n-ally.localesPaths": [
-    "src/i18n/lang"
-  ],
-  "i18n-ally.sortKeys": true,
-  "i18n-ally.keepFulfilled": true,
-  "i18n-ally.keystyle": "nested"
-}