Improve hover and focus style in columns settings (#16222)

* Make focus visible on switches and text buttons in columns settings

* Make hover/focus visible on left/right arrows in columns settings

Use same style as for station action bar (reply/boost/fav/etc.)

* Tab first to “Pin/Unpin” before left/right arrows in columns settings

app/javascript/mastodon/components/column_header.js

@@ -119,8 +119,8 @@ class ColumnHeader extends React.PureComponent {
 
       moveButtons = (
         <div key='move-buttons' className='column-header__setting-arrows'>
-          <button title={formatMessage(messages.moveLeft)} aria-label={formatMessage(messages.moveLeft)} className='text-btn column-header__setting-btn' onClick={this.handleMoveLeft}><Icon id='chevron-left' /></button>
+          <button title={formatMessage(messages.moveLeft)} aria-label={formatMessage(messages.moveLeft)} className='icon-button column-header__setting-btn' onClick={this.handleMoveLeft}><Icon id='chevron-left' /></button>
-          <button title={formatMessage(messages.moveRight)} aria-label={formatMessage(messages.moveRight)} className='text-btn column-header__setting-btn' onClick={this.handleMoveRight}><Icon id='chevron-right' /></button>
+          <button title={formatMessage(messages.moveRight)} aria-label={formatMessage(messages.moveRight)} className='icon-button column-header__setting-btn' onClick={this.handleMoveRight}><Icon id='chevron-right' /></button>
         </div>
       );
     } else if (multiColumn && this.props.onPin) {
@@ -141,8 +141,8 @@ class ColumnHeader extends React.PureComponent {
     ];
 
     if (multiColumn) {
-      collapsedContent.push(moveButtons);
       collapsedContent.push(pinButton);
+      collapsedContent.push(moveButtons);
     }
 
     if (children || (multiColumn && this.props.onPin)) {

app/javascript/styles/mastodon/components.scss

@@ -2822,7 +2822,7 @@ a.account__display-name {
   transition: background-color 0.2s ease;
 }
 
-.react-toggle:hover:not(.react-toggle--disabled) .react-toggle-track {
+.react-toggle:is(:hover, :focus-within):not(.react-toggle--disabled) .react-toggle-track {
   background-color: darken($ui-base-color, 10%);
 }
 
@@ -2830,7 +2830,7 @@ a.account__display-name {
   background-color: $ui-highlight-color;
 }
 
-.react-toggle--checked:hover:not(.react-toggle--disabled) .react-toggle-track {
+.react-toggle--checked:is(:hover, :focus-within):not(.react-toggle--disabled) .react-toggle-track {
   background-color: lighten($ui-highlight-color, 10%);
 }
 
@@ -3548,12 +3548,17 @@ a.status-card.compact:hover {
 }
 
 .column-header__setting-btn {
-  &:hover {
+  &:hover,
+  &:focus {
     color: $darker-text-color;
     text-decoration: underline;
   }
 }
 
+.column-header__collapsible__extra + .column-header__setting-btn {
+  padding-top: 5px;
+}
+
 .column-header__permission-btn {
   display: inline;
   font-weight: inherit;
@@ -3564,10 +3569,15 @@ a.status-card.compact:hover {
   float: right;
 
   .column-header__setting-btn {
-    padding: 0 10px;
+    padding: 5px;
+
+    &:first-child {
+      padding-right: 7px;
+    }
 
     &:last-child {
-      padding-right: 0;
+      padding-left: 7px;
+      margin-left: 5px;
     }
   }
 }

app/javascript/styles/mastodon/rtl.scss

@@ -126,6 +126,20 @@ body.rtl {
 
   .column-header__setting-arrows {
     float: left;
+
+    .column-header__setting-btn {
+      &:first-child {
+        padding-left: 7px;
+        padding-right: 5px;
+      }
+
+      &:last-child {
+        padding-right: 7px;
+        padding-left: 5px;
+        margin-right: 5px;
+        margin-left: 0;
+      }
+    }
   }
 
   .setting-toggle__label {
@@ -451,11 +465,6 @@ body.rtl {
     margin-left: 5px;
   }
 
-  .column-header__setting-arrows .column-header__setting-btn:last-child {
-    padding-left: 0;
-    padding-right: 10px;
-  }
-
   .simple_form .input.radio_buttons .radio > label input {
     left: auto;
     right: 0;