split maps into multiple components, render sighting markers in real time, pull sighting info into marker info boxes

src/pages/SightingList.js

@@ -0,0 +1,14 @@
+import React, { Component } from 'react';
+import Typography from '@material-ui/core/Typography';
+
+class Sighting extends Component {
+    render() {
+        return (
+            <Typography variant='display1' align='center' gutterBottom>
+                Sightings
+            </Typography>
+        );
+    }
+}
+
+export default Sighting;