feat: article page widget support (#488)

* feat: article page widget support

* refactor: get rid of article toolbar

Same 3 column layout for article page and homepage

* add missing space

assets/scss/partials/layout/article.scss

@@ -122,67 +122,6 @@
     }
 }
 
-.article-page.has-toc {
-    .left-sidebar {
-        display: none;
-    }
-
-    .right-sidebar {
-        width: 100%;
-        padding: 0;
-        display: none;
-
-        @include respond(xl) {
-            display: block;
-            top: var(--main-top-padding);
-        }
-    }
-
-    #article-toolbar {
-        display: block;
-
-        @include respond(md) {
-            padding: 0;
-        }
-
-        @include respond(xl) {
-            margin-top: 0;
-            position: sticky;
-            top: var(--main-top-padding);
-            flex-shrink: 1;
-
-            a {
-                background: transparent;
-                box-shadow: none;
-                border: 1px solid var(--body-text-color);
-                width: 100%;
-                margin-right: 0;
-
-                svg {
-                    flex-shrink: 0;
-                }
-            }
-        }
-    }
-
-    .main-container {
-        align-items: start;
-        flex-direction: column;
-
-        @include respond(xl) {
-            flex-direction: row;
-        }
-    }
-
-    .main {
-        padding-top: 0;
-
-        @include respond(xl) {
-            padding-top: var(--main-top-padding);
-        }
-    }
-}
-
 .widget--toc {
     background-color: var(--card-background);
     border-radius: var(--card-border-radius);

assets/scss/partials/sidebar.scss

@@ -37,7 +37,7 @@
 }
 
 .right-sidebar {
-    flex-shrink: 0;
+    width: 100%;
     display: none;
 
     &.sticky {