Refactor class names

Author: jperals

src/split-panel/implementation.tsx

@@ -102,21 +102,19 @@ export function SplitPanelImplementation({
     <div className={clsx(styles.header, isToolbar && styles['with-toolbar'])} style={appLayoutMaxWidth}>
       <div className={styles['header-content']}>
         <div className={styles['header-main-row']}>
-          <div className={styles['header-text-and-info']}>
+          <div>
             <h2 className={clsx(styles['header-text'], testUtilStyles['header-text'])} id={panelHeaderId}>
               {header}
             </h2>
             {headerInfo && (
-              <span className={clsx(styles['header-info-slot'], testUtilStyles['header-info-slot'])}>{headerInfo}</span>
+              <span className={clsx(styles['header-info'], testUtilStyles['header-info'])}>{headerInfo}</span>
             )}
           </div>
           {headerActions && (
-            <div className={clsx(styles['header-actions-slot'], testUtilStyles['header-actions-slot'])}>
-              {headerActions}
-            </div>
+            <div className={clsx(styles['header-actions'], testUtilStyles['header-actions'])}>{headerActions}</div>
           )}
         </div>
-        <div className={styles['header-actions']}>
+        <div className={styles['header-buttons']}>
           {!hidePreferencesButton && isOpen && (
             <>
               <InternalButton

src/split-panel/styles.scss

@@ -267,7 +267,7 @@ $app-layout-drawer-width: calc(#{awsui.$space-layout-toggle-diameter} + 2 * #{aw
     min-block-size: calc(#{awsui.$font-panel-header-line-height} + #{$vertical-margin});
   }
 
-  &-info-slot {
+  &-info {
     display: inline;
     margin-inline-start: awsui.$space-scaled-xs;
   }
@@ -280,7 +280,7 @@ $app-layout-drawer-width: calc(#{awsui.$space-layout-toggle-diameter} + 2 * #{aw
   }
 }
 
-.header-actions {
+.header-buttons {
   display: flex;
   flex-direction: row;
   justify-content: space-between;

src/split-panel/test-classes/styles.scss

@@ -4,9 +4,9 @@
 */
 
 .root,
-.header-actions-slot,
+.header-actions,
 .header-description,
-.header-info-slot,
+.header-info,
 .header-text,
 .open-button,
 .close-button,