feat(patient-register): make filterbar float over human anatomy diagram on registration page

src/pages/patient/components/RegisterAvailableFilterBar.tsx

@@ -50,7 +50,10 @@ const RegisterAvailableFilterBar: React.FC<Props> = ({
   // ];
 
   return (
-    <div style={{ padding: 16, borderBottom: '1px solid #f0f0f0' }}>
+    <div
+      className="absolute top-0 left-0 right-0 z-10"
+      style={{ padding: 16, borderBottom: '1px solid #f0f0f0' }}
+    >
       <Row gutter={[16, 16]}>
         <Col xs={24} sm={12} md={6} lg={6} xl={6}>
           <Segmented