add more type casts

src/views/ConfirmGiftView.vue

@@ -398,6 +398,7 @@ import * as yaml from "js-yaml";
 import * as R from "ramda";
 import { Component, Vue } from "vue-facing-decorator";
 import { useClipboard } from "@vueuse/core";
+import { Router } from "vue-router";
 
 import GiftedDialog from "@/components/GiftedDialog.vue";
 import QuickNav from "@/components/QuickNav.vue";
@@ -764,7 +765,7 @@ export default class ClaimView extends Vue {
     const route = {
       path: "/claim/" + encodeURIComponent(claimId),
     };
-    this.$router.push(route).then(async () => {
+    (this.$router as Router).push(route).then(async () => {
       this.resetThisValues();
       await this.loadClaim(claimId, this.activeDid);
     });