[Passwords] Fixed inputs bottom margin for Password Edit Dialog

This change removes margin for error message for all cr-inputs. For the
username field it is added only if the input field is invalid.

Bug: 377410
Change-Id: Ief394cf58ea3923e8ba25ffa8152be0b9cf7bd21
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2438390Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Viktor Semeniuk <vsemeniuk@google.com>
Cr-Commit-Position: refs/heads/master@{#811814}

chrome/browser/resources/settings/autofill_page/password_edit_dialog.html

@@ -12,6 +12,15 @@
         margin-inline-start: 2px;
         margin-top: 16px;
       }
+
+      cr-input {
+        --cr-input-error-display: none;
+      }
+
+      #usernameInput[invalid] {
+        --cr-input-error-display: block;
+      }
+
     </style>
     <cr-dialog id="dialog" close-text="$i18n{close}">
       <div slot="title" id="title">[[getTitle_(isEditDialog_)]]</div>