[MD settings] change button padding and placement

chrome/browser/resources/settings/settings_shared_css.html

Index: chrome/browser/resources/settings/settings_shared_css.html
diff --git a/chrome/browser/resources/settings/settings_shared_css.html b/chrome/browser/resources/settings/settings_shared_css.html
index 001f436da70d99c2c4a73ae16f70296689bf276e..db07e781ed70d03526e37ffc5f5ad2849a2ed331 100644
--- a/chrome/browser/resources/settings/settings_shared_css.html
+++ b/chrome/browser/resources/settings/settings_shared_css.html
@@ -90,7 +90,6 @@
           font-weight: 500;
           text-align: start;
         };
-        margin: 0 -0.57em;  /* Offsets default paper-button padding. */
       }
 
       paper-button.secondary-button {
@@ -108,6 +107,15 @@
         };
       }
 
+      .settings-box paper-button.primary-button,
+      .settings-box paper-button.secondary-button,
+      .settings-box paper-button.secondary-button {
+        margin-left: -12px;
+        margin-right: -12px;
+        padding-left: 12px;
+        padding-right: 12px;
+      }
+
       paper-checkbox {
         --paper-checkbox-checked-color: var(--google-blue-500);
         --paper-checkbox-label-spacing: var(--checkbox-spacing);
@@ -136,11 +144,6 @@
         white-space: nowrap;
       }
 
-      .button-row {
-        display: flex;
-        margin-top: 25px;
-      }
-
       .button-strip {
         text-align: end;
       }