refactor: improve router type safety and usage

- Add explicit Router type imports across views
- Replace $router type casting with proper typing
- Use $router.back() instead of $router.go(-1) for consistency
- Add proper route and router typings to components
- Clean up router navigation methods
- Fix router push/back method calls

This commit improves type safety and consistency in router usage across
the application's view components.

src/views/OfferDetailsView.vue

@@ -232,7 +232,7 @@ export default class OfferDetailsView extends Vue {
     try {
       this.prevCredToEdit = (this.$route.query["prevCredToEdit"] as string)
         ? (JSON.parse(
-            (this.$route.query["prevCredToEdit"] as string),
+            this.$route.query["prevCredToEdit"] as string,
           ) as GenericCredWrapper<OfferVerifiableCredential>)
         : undefined;
     } catch (error) {
@@ -263,13 +263,15 @@ export default class OfferDetailsView extends Vue {
       (this.$route.query["description"] as string) ||
       this.prevCredToEdit?.claim?.itemOffered?.description ||
       this.descriptionOfItem;
-    this.destinationPathAfter = (this.$route.query["destinationPathAfter"] as string) || "";
+    this.destinationPathAfter =
+      (this.$route.query["destinationPathAfter"] as string) || "";
     this.offererDid = ((this.$route.query["offererDid"] as string) ||
-      (this.prevCredToEdit?.claim?.agent as any)?.identifier ||
+      (this.prevCredToEdit?.claim?.agent as unknown as { identifier: string })
+        ?.identifier ||
       this.offererDid) as string;
     this.hideBackButton =
       (this.$route.query["hideBackButton"] as string) === "true";
-    this.message = ((this.$route.query["message"] as string) || "");
+    this.message = (this.$route.query["message"] as string) || "";
 
     // find any project ID
     let project;
@@ -288,8 +290,7 @@ export default class OfferDetailsView extends Vue {
 
     this.recipientDid = ((this.$route.query["recipientDid"] as string) ||
       this.prevCredToEdit?.claim?.recipient?.identifier) as string;
-    this.recipientName =
-      ((this.$route.query["recipientName"] as string) || "");
+    this.recipientName = (this.$route.query["recipientName"] as string) || "";
 
     this.validThroughDateInput =
       this.prevCredToEdit?.claim?.validThrough || this.validThroughDateInput;