feat: improve auto-refresh handling during member admission dialogs

- Add stopAutoRefresh() calls before showing confirmation dialogs
- Add startAutoRefresh() calls after dialog interactions complete
- Ensure auto-refresh resumes properly in all dialog callback paths
- Fix missing onCancel handler for contact confirmation dialog

This prevents auto-refresh from interfering with user interactions
during member admission workflows while ensuring it resumes afterward.

src/components/MembersList.vue

@@ -542,7 +542,8 @@ export default class MembersList extends Vue {
   checkWhetherContactBeforeAdmitting(decrMember: DecryptedMember) {
     const contact = this.getContactFor(decrMember.did);
     if (!decrMember.member.admitted && !contact) {
-      // If not a contact, show confirmation dialog
+      // If not a contact, stop auto-refresh and show confirmation dialog
+      this.stopAutoRefresh();
       this.$notify(
         {
           group: "modal",
@@ -555,6 +556,7 @@ export default class MembersList extends Vue {
             await this.addAsContact(decrMember);
             // After adding as contact, proceed with admission
             await this.toggleAdmission(decrMember);
+            this.startAutoRefresh();
           },
           onNo: async () => {
             // If they choose not to add as contact, show second confirmation
@@ -567,14 +569,19 @@ export default class MembersList extends Vue {
                 yesText: NOTIFY_CONTINUE_WITHOUT_ADDING.yesText,
                 onYes: async () => {
                   await this.toggleAdmission(decrMember);
+                  this.startAutoRefresh();
                 },
                 onCancel: async () => {
                   // Do nothing, effectively canceling the operation
+                  this.startAutoRefresh();
                 },
               },
               TIMEOUTS.MODAL,
             );
           },
+          onCancel: async () => {
+            this.startAutoRefresh();
+          },
         },
         TIMEOUTS.MODAL,
       );