fix: clear out sys folder on windows dolphin install

src/dolphin/install/windows.ts

@@ -1,4 +1,6 @@
+import { remove } from "fs-extra";
 import { async as AsyncStreamZip } from "node-stream-zip";
+import path from "path";
 
 export async function installDolphinOnWindows({
   assetPath,
@@ -9,6 +11,10 @@ export async function installDolphinOnWindows({
   destinationFolder: string;
   log?: (message: string) => void;
 }) {
+  // clear Sys folder in case of file removals
+  const sysFolder = path.join(destinationFolder, "Sys");
+  await remove(sysFolder);
+
   // don't need to backup user files since our zips don't contain them
   log(`Extracting ${assetPath} to: ${destinationFolder}`);
   const zip = new AsyncStreamZip({ file: assetPath });