feat(tasks,shares): fix Share Account Edit Details routing/auto-select, popup compare dialog, redesign Approval Center filters

- Register the missing edit-details route so the Share Account "Edit Details"
  maker-checker screen (already built) is actually reachable, and remove the
  stale hardcoded disable on its menu entry.
- Fix Terms step race: Default Savings Account, Total Shares and Application
  Date now display correctly in edit mode instead of racing an async
  product-template fetch or reusing pending-application-only fields.
- Show a client's linked share account number on the Savings Account General
  tab.
- Replace the inline diff panel on Pending Share Account Edits with a popup
  compare dialog (mirrors the savings equivalent), showing only fields that
  actually changed.
- Redesign Pending Share/Savings Account Edits, Share Withdrawal Requests,
  Dividend Requests and Share Addition Requests with a consistent header,
  search box and (where the data supports it) date-range filters, matching
  the existing Withdrawal Requests screen.

src/app/savings/savings-account-view/general-tab/general-tab.component.html

@@ -35,6 +35,12 @@
               {{ savingsAccountData.clientName || savingsAccountData.groupName || '—' }}
             </span>
           </div>
+          @if (savingsAccountData.shareLinkingEnabled) {
+            <div class="nx-row">
+              <span class="nx-row__label">{{ 'labels.inputs.Linked Share Account' | translate }}</span>
+              <span class="nx-row__value nx-mono">{{ savingsAccountData.shareAccountNo || 'Unassigned' }}</span>
+            </div>
+          }
           @if (!savingsAccountData.status.rejected && !savingsAccountData.status.submittedAndPendingApproval) {
             <div class="nx-row">
               <span class="nx-row__label">{{ 'labels.inputs.Activated On' | translate }}</span>