fix(school): drop the nearby section's lede, which repeated its heading

"Other schools nearby" was followed by "Other primary schools near
<school>.", which says the same thing again. The heading now stands alone.

nearbyNoun() and the phase and schoolName props existed only to build that
line, so they go with it. Its bottom margin was the only gap between the
heading and the cards, so the header row carries that gap now, and centres
the heading against the carousel arrows now that it is a single line.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

nextjs-app/__tests__/components/NearbySchoolsSection.test.tsx

@@ -8,7 +8,6 @@
 import { render, screen } from '@testing-library/react';
 
 import {
-  nearbyNoun,
   NearbySchoolsSection,
   shouldRenderNearby,
 } from '@/components/school/NearbySchoolsSection';
@@ -43,13 +42,7 @@ function school(overrides: Partial<NearbySchool> = {}): NearbySchool {
 
 function renderSection(nearby: NearbySchool[]) {
   return render(
-    <NearbySchoolsSection
-      urn={100001}
-      schoolName="Meadowbrook Primary School"
-      phase="Primary"
-      thisMetricValue={72}
-      nearby={nearby}
-    />,
+    <NearbySchoolsSection urn={100001} thisMetricValue={72} nearby={nearby} />,
   );
 }
 
@@ -90,15 +83,10 @@ describe('what the section claims', () => {
   });
 
   it('shows no chips at all when nothing is shared, rather than inventing one', () => {
-    const { container } = render(
-      <NearbySchoolsSection
-        urn={100001}
-        schoolName="Meadowbrook Primary School"
-        phase="Primary"
-        thisMetricValue={72}
-        nearby={[school({ shared: [] }), school({ urn: 100003, shared: [] })]}
-      />,
-    );
+    const { container } = renderSection([
+      school({ shared: [] }),
+      school({ urn: 100003, shared: [] }),
+    ]);
     // The card still carries its distance, name, type and figure — just no
     // claim of likeness.
     expect(container.querySelectorAll('li ul').length).toBe(0);
@@ -106,37 +94,6 @@ describe('what the section claims', () => {
   });
 });
 
-describe('what the lede calls the set', () => {
-  it.each([
-    ['Primary', 'primary schools'],
-    ['Middle deemed primary', 'primary schools'],
-    ['Secondary', 'secondary schools'],
-    ['Middle deemed secondary', 'secondary schools'],
-    ['All-through', 'all-through schools'],
-    // GIAS phase 6. Its candidates span the whole secondary group, so no
-    // single noun fits and it takes the honest general one.
-    ['16 plus', 'schools and colleges'],
-    ['', 'schools'],
-    [null, 'schools'],
-  ])('calls a %s school\'s neighbours "%s"', (phase, expected) => {
-    expect(nearbyNoun(phase)).toBe(expected);
-  });
-
-  it('never calls a sixth form college\'s neighbours primary schools', () => {
-    render(
-      <NearbySchoolsSection
-        urn={100001}
-        schoolName="Barnet Sixth Form College"
-        phase="16 plus"
-        thisMetricValue={null}
-        nearby={[school(), school({ urn: 100003 })]}
-      />,
-    );
-    expect(screen.getByText(/Other schools and colleges near Barnet Sixth Form College/)).toBeInTheDocument();
-    expect(screen.queryByText(/primary schools/)).not.toBeInTheDocument();
-  });
-});
-
 describe('cards', () => {
   it('links each school to its canonical slug', () => {
     renderSection([school(), school({ urn: 100003, school_name: 'Oakfield Primary School' })]);