making roles modal reset selected tab on close, stops traveller tab from showing on bluff selection and a better user experience

src/components/modals/RoleModal.vue

@@ -1,8 +1,5 @@
 <template>
-  <Modal
-    v-if="modals.role && availableRoles.length"
-    @close="toggleModal('role')"
-  >
+  <Modal v-if="modals.role && availableRoles.length" @close="close()">
     <h3>
       Choose a new character for
       {{
@@ -109,6 +106,10 @@ export default {
     isBluffs() {
       return this.playerIndex > 0;
     },
+    close() {
+      this.tab = "editionRoles";
+      this.toggleModal("role");
+    },
     ...mapMutations(["toggleModal"])
   }
 };