feat(ui): consolidate search/filter area into cleaner 2-row layout

Before: 7 visual rows (search, radius row, phase row, advanced toggle,
teal location banner, results count, filter chips).
After: 2 rows in card + 1 unified results toolbar.

- FilterBar: merge radius, phase, and Advanced toggle into a single
  .controlsRow below the search bar; removed orphaned stacked rows
- HomeView: remove separate teal location banner; merge location info
  into results heading ("16 schools within 1.0 miles of SW196AR");
  move List/Map toggle inline with sort in one results header row
- Remove "Near postcode (Xmi)" chip (now redundant with heading)
- Sort select hidden in map view (sorting is meaningless there)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

nextjs-app/components/HomeView.module.css

@@ -33,33 +33,6 @@
   }
 }
 
-.locationBannerWrapper {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  gap: 0.75rem;
-  margin-bottom: 1rem;
-  flex-wrap: wrap;
-}
-
-.locationBanner {
-  display: flex;
-  align-items: center;
-  gap: 0.5rem;
-  padding: 0.5rem 1rem;
-  background: var(--accent-teal-bg);
-  border: 1px solid rgba(45, 125, 125, 0.25);
-  border-radius: 8px;
-  font-size: 0.875rem;
-  color: var(--accent-teal, #2d7d7d);
-  font-weight: 500;
-}
-
-.locationIcon {
-  font-size: 1.25rem;
-  color: var(--accent-teal, #2d7d7d);
-}
-
 /* View Toggle */
 .viewToggle {
   display: flex;
@@ -308,16 +281,14 @@
 }
 
 @media (max-width: 768px) {
-  .locationBannerWrapper {
+  .resultsHeader {
     flex-direction: column;
-    align-items: stretch;
-    margin-bottom: 0.75rem;
+    align-items: flex-start;
   }
 
-  .locationBanner {
-    padding: 0.5rem 0.75rem;
-    font-size: 0.8125rem;
-    border-radius: 6px;
+  .resultsHeaderActions {
+    width: 100%;
+    justify-content: space-between;
   }
 
   .viewToggle {
@@ -509,6 +480,13 @@
   padding: 0 0 1rem;
 }
 
+.resultsHeaderActions {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  flex-shrink: 0;
+}
+
 .sortSelect {
   padding: 0.375rem 0.75rem;
   border: 1px solid var(--border-color, #e0ddd8);