Switch to official launcher auth (#1118)

* Switch to official launcher auth

* add debug info

* Fix build

theseus_gui/src/store/error.js

@@ -0,0 +1,21 @@
+import { defineStore } from 'pinia'
+
+export const useError = defineStore('errorsStore', {
+  state: () => ({
+    errorModal: null,
+  }),
+  actions: {
+    setErrorModal(ref) {
+      this.errorModal = ref
+    },
+    showError(error) {
+      this.errorModal.show(error)
+    },
+  },
+})
+
+export const handleSevereError = (err) => {
+  const error = useError()
+  error.showError(err)
+  console.error(err)
+}