merge feature/update_code and feature/UI-MFA-Product branch code

src/app/deposits/fixed-deposits/fixed-deposit-account-stepper/fixed-deposit-account-interest-rate-chart-step/fixed-deposit-account-interest-rate-chart-step.component.html

@@ -237,7 +237,7 @@
             </div>
 
             <!-- Maturity Summary (all FD types) -->
-            @if (matchResult.maturityAmount != null) {
+            @if (matchResult.maturityAmount !== null) {
               <div class="fdrc-maturity-card">
                 <div class="fdrc-maturity-card__header">
                   <i class="fas fa-coins"></i>
@@ -260,7 +260,7 @@
                     <span class="fdrc-maturity-row__label">Interest Earned</span>
                     <span class="fdrc-maturity-row__value">₹ {{ matchResult.interestEarned | number: '1.2-2' }}</span>
                   </div>
-                  @if (isSpecial && matchResult.estimatedMonthlyPayout != null) {
+                  @if (isSpecial && matchResult.estimatedMonthlyPayout !== null) {
                     <div class="fdrc-maturity-row">
                       <span class="fdrc-maturity-row__label">Monthly Payout</span>
                       <span class="fdrc-maturity-row__value fdrc-maturity-row__value--highlight">
@@ -320,7 +320,7 @@
           <td mat-cell *matCellDef="let slab" class="fdrc-td fdrc-td--period">
             <span class="fdrc-period-range">
               {{ slab.fromPeriod }}
-              @if (slab.toPeriod != null) {
+              @if (slab.toPeriod !== null) {
                 – {{ slab.toPeriod }}
               } @else {
                 +