added modal to select source documentation

frontend/src/api/docs.ts

@@ -0,0 +1,18 @@
+import { Doc } from '../models/misc';
+
+export async function getDocs(): Promise<Array<Doc>> {
+  //Fetch default source docs
+  const response = await fetch(
+    'https://d3dg1063dc54p9.cloudfront.net/combined.json',
+  );
+  const data = await response.json();
+
+  //Create array of Doc objects
+  const docs: Array<Doc> = [];
+
+  data.forEach((doc: Doc) => {
+    docs.push(doc);
+  });
+
+  return docs;
+}