Hold the docked search view's 240px floor to a view with results

A search whose slot renders nothing would otherwise open as an empty
240px box; M3's minimum is about a container with something in it.

Plan step 20, finding IN-20.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9

resources/css/components/search.css

@@ -182,8 +182,6 @@
         display: flex;
         flex-direction: column;
         max-width: var(--search-open-width);
-        /* M3: the docked container is at least 240px tall and at most two thirds of the window. */
-        min-height: 15rem;
         max-height: min(40rem, 70dvh);
         padding-top: var(--search-height);
         overflow: hidden;
@@ -204,6 +202,12 @@
         }
     }
 
+    /* M3: the docked container is at least 240px tall — once there is something in it to be tall
+       about; a search with nothing to show stays the height of its bar. */
+    [data-search-view]:has([data-search-results]) {
+        min-height: 15rem;
+    }
+
     /* No divider: that belongs to the divided style, which Expressive deprecates in favour of the
        contained one this file draws. */
     [data-search-results] {