Merge pull request #19696 from overleaf/mf-strikethrough0-text-color-change

[web] Change color of strikethrough text to `neutral-60` to improve color contrast

GitOrigin-RevId: 259bc6370fb2d02c073c7409ead5b97e08dc9724

services/web/frontend/stylesheets/app/plans/plans-new-design.less

@@ -369,7 +369,7 @@
       s {
         font-size: var(--font-size-02);
         line-height: @nondiscounted-price-element-height;
-        color: var(--neutral-40);
+        color: var(--neutral-60);
         font-weight: 600;
       }
 
@@ -681,9 +681,9 @@
         }
       }
 
-      .old-price-plans-card-mobile {
+      s {
         padding: var(--spacing-04) 0 0 0;
-        color: var(--neutral-40);
+        color: var(--neutral-60);
         font-size: var(--font-size-04); // 18px
         font-weight: 600;
         line-height: var(--line-height-05);