fix(style): reasonable page width for rich search preview

quartz/components/styles/search.scss

@@ -134,14 +134,7 @@
           display: block;
           box-sizing: border-box;
           overflow: hidden;
-
-          & .preview-inner {
-            margin: 0 auto;
-            padding: 1em;
-            height: 100%;
-            width: 100%;
           box-sizing: border-box;
-            overflow-y: auto;
           font-family: inherit;
           color: var(--dark);
           line-height: 1.5em;
@@ -149,9 +142,12 @@
           background: var(--light);
           border-top-right-radius: 5px;
           border-bottom-right-radius: 5px;
-            box-shadow:
-              0 14px 50px rgba(27, 33, 48, 0.12),
-              0 10px 30px rgba(27, 33, 48, 0.16);
+          overflow-y: auto;
+          padding: 1rem;
+
+          & .preview-inner {
+            margin: 0 auto;
+            width: min($pageWidth, 100%);
           }
 
           a.internal {