Update biome.json configuration

Removed the schema definition and added assist actions.

Author: skulidropek

packages/app/biome.json

@@ -1,5 +1,4 @@
 {
-	"$schema": "https://biomejs.dev/schemas/2.3.8/schema.json",
 	"vcs": {
 		"enabled": false,
 		"clientKind": "git",
@@ -12,6 +11,13 @@
 		"enabled": false,
 		"indentStyle": "tab"
 	},
+	"assist": {
+		"actions": {
+			"source": {
+				"organizeImports": "off"
+			}
+		}
+	},
 	"linter": {
 		"enabled": false,
 		"rules": {