fix: cap link-wrapped icon images at 110x110 so /documentation /community landing pages don't render giant thumbnails

The PNGs under /uploads/documentation and /uploads/community are
authored as link-wrapped icon thumbnails on the original Joomla
landing pages -- but the actual source files are ~459x459 even when
the filename advertises 110x110, so the default \`max-width: 100%\`
let them swell to the full content-column width on the new site
(each "For Users" / "For Developers" / "Citing us" module was
literally hundreds of pixels tall).

Targets only \`.page-body a > img:only-child\` (an image inside an
otherwise-empty link, which is the icon-thumbnail convention).
Content images that sit on their own outside a link keep the
existing 100% behaviour.

Author: adamjohnwright

projects/website-angular/src/app/page/page.component.scss

@@ -3,6 +3,20 @@
     max-width: 100%;
     height: auto;
   }
+
+  // Link-wrapped images on MDX landing pages are icon thumbnails
+  // (e.g. the For Users / For Developers / Citing us modules on
+  // /documentation). The source PNGs are ~459x459 even when their
+  // filename advertises 110x110, so the default max-width: 100%
+  // lets them dominate the page. Cap link-only image children at a
+  // sensible thumbnail size and centre them; legitimately wide
+  // content images (no surrounding link) keep the original behaviour.
+  ::ng-deep a > img:only-child {
+    display: block;
+    max-width: 110px;
+    max-height: 110px;
+    margin: 0 auto;
+  }
 }
 
 .page-content {