[MD Bookmarks] Add draggable sidebar.

chrome/browser/resources/md_bookmarks/list.html

Index: chrome/browser/resources/md_bookmarks/list.html
diff --git a/chrome/browser/resources/md_bookmarks/list.html b/chrome/browser/resources/md_bookmarks/list.html
index 09d90931fa4d953e1282d73a39f80a8e412ab9cc..d36a1f4941b5eb1a329b7d980c617d9bb2f565f3 100644
--- a/chrome/browser/resources/md_bookmarks/list.html
+++ b/chrome/browser/resources/md_bookmarks/list.html
@@ -15,7 +15,8 @@
   <template>
     <style include="shared-style cr-shared-style">
       :host {
-        padding: 20px 32px;
+        overflow-y: auto;
+        padding: 20px 32px 20px calc(32px - var(--splitter-width));
       }
 
       #bookmarksCard {
@@ -23,7 +24,6 @@
         background-color: #fff;
         margin: 0 auto;
         max-width: var(--card-max-width);
-        min-width: var(--card-min-width);
         padding: 8px 0;
       }