chore: move window.open to platform io to handle desktop app

packages/hoppscotch-selfhost-desktop/src/platform/io.ts

@@ -1,5 +1,6 @@
 import { IOPlatformDef } from "@hoppscotch/common/platform/io"
 import { save } from "@tauri-apps/api/dialog"
+import { open } from "@tauri-apps/api/shell"
 import { writeBinaryFile, writeTextFile } from "@tauri-apps/api/fs"
 
 export const ioDef: IOPlatformDef = {
@@ -21,4 +22,7 @@ export const ioDef: IOPlatformDef = {
 
     return { type: "saved", path }
   },
+  openExternalLink(url) {
+    return open(url)
+  },
 }