Elastic: Small fix and improvement for .sidebar-right

CHANGELOG

@@ -18,22 +18,23 @@ CHANGELOG Roundcube Webmail
     - Make it apply only if deleting/moving a previewed message/contact
 - Redis: Support connection to unix socket
 - Put charset meta specification before a title tag, add page title automatically (#6811)
+- Elastic: Various internal refactorings
 - Elastic: Add Prev/Next buttons on message page toolbar (#6648)
 - Elastic: Close search options on Enter key press in quick-search input (#6660)
 - Elastic: Changed read/unread icons (#6636)
 - Elastic: Changed "Move to..." icon (#6637)
 - Elastic: Add hide/show for advanced preferences (#6632)
+- Elastic: Add default icon on Settings/Preferences lists for external plugins (#6814)
+- Elastic: Move compose attachments/options to the right side (#6839)
 - Elastic: Fix bug where toolbar disappears on attachment menu use in Chrome (#6677)
 - Elastic: Fix folders list scrolling on touch devices (#6706)
 - Elastic: Fix non-working pretty selects in Chrome browser (#6705)
-- Elastic: Various internal refactorings
 - Elastic: Fix issue with absolute positioned mail content (#6739)
 - Elastic: Fix bug where some menu actions could cause a browser popup warning
 - Elastic: Fix handling mailto: URL parameters in contact menu (#6751)
 - Elastic: Fix keyboard navigation in some menus, e.g. the contact menu
 - Elastic: Fix visual issue with long buttons in .boxwarning (#6797)
 - Elastic: Fix handling new-line in text pasted to a recipient input
-- Elastic: Add default icon on Settings/Preferences lists for external plugins (#6814)
 - Larry: Fix regression where menu actions didn't work with keyboard (#6740)
 - ACL: Display user/group names (from ldap) instead of acl identifier
 - Password: Added ldap_exop driver (#4992)

skins/elastic/styles/layout.less

@@ -132,6 +132,9 @@ body {
         order: 2;
         border-right: 0;
         border-left: 1px solid @color-layout-border;
+        // sidebar on right is unusual situation, probably there's no list in layout,
+        // in such a case we can make it a little bit wider
+        flex: 3;
     }
 }
 
@@ -259,7 +262,7 @@ body {
     #layout-sidebar,
     #layout-list {
         max-width: none;
-        border: 0;
+        border: 0 !important;
     }
 
     #layout > div > .header {