fix(core): fix footer link dimensions

Set display property of links in site footer
which are visualised by icons – which contain
images or <span> tags for Material Symbols –
to inline-block to make them fit the icons'
dimensions. Prevents links that are smaller
in size than their visual content, which can
cause unexpected behaviour when hovering.

apis_core/core/static/css/core.css

@@ -6,3 +6,8 @@
 a #logo:hover {
     opacity: 0.5;
 }
+
+footer a:has(> img),
+footer a:has(> span[class*="material-symbols"]) {
+    display: inline-block;
+}