fix(tasks): separate Pending Share Accounts from the Pending Account screen

Removes the Pending Share Accounts section that had been bolted onto the
Pending Account screen (duplicate data/actions alongside the normal-account
table), restoring it as its own standalone queue. The standalone
pending-share-accounts route/component already existed but had no tab link
anywhere in the Approval Center nav, so it was unreachable from the UI -
added a "Pending Share Accounts" tab for it.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/tasks/checker-inbox-and-tasks/checker-inbox-and-tasks.component.html

@@ -72,6 +72,15 @@
       <fa-icon icon="hourglass-half" class="ac-tab__ic"></fa-icon>
       <span>Pending Account</span>
     </a>
+    <a
+      class="ac-tab"
+      routerLink="./pending-share-accounts"
+      routerLinkActive="ac-tab--active"
+      *mifosxHasPermission="'ALL_FUNCTIONS_READ'"
+    >
+      <fa-icon icon="hourglass-half" class="ac-tab__ic"></fa-icon>
+      <span>Pending Share Accounts</span>
+    </a>
     <a
       class="ac-tab"
       routerLink="./product-approval"