Update VSCode settings: Configure ESLint with flat config, set working directories for apps and packages, enable format on save, and specify default formatters for TypeScript, JSONC, and Svelte files.

.vscode/settings.json

@@ -1,5 +1,31 @@
 {
-	"files.associations": {
-		"*.css": "tailwindcss"
-	}
-}
+	"eslint.useFlatConfig": true,
+	"eslint.workingDirectories": [
+		{
+			"pattern": "apps/*"
+		},
+		{
+			"pattern": "packages/*"
+		}
+	],
+	"eslint.validate": [
+		"javascript",
+		"typescript",
+		"svelte"
+	],
+	"eslint.options": {
+		"cache": true,
+		"cacheLocation": ".eslintcache"
+	},
+	"editor.formatOnSave": true,
+	"[typescript]": {
+		"editor.defaultFormatter": "esbenp.prettier-vscode"
+	},
+	"[jsonc]": {
+		"editor.defaultFormatter": "vscode.json-language-features"
+	},
+	"[svelte]": {
+		"editor.defaultFormatter": "esbenp.prettier-vscode"
+	},
+	"editor.tabSize": 2
+}