Refactored app.js and index.js to follow hasura examples of managing state. Now using hooks for user auth and only user auth.

hasura/migrations/1575607977672_create_table_public_masterdata/down.yaml

@@ -0,0 +1,3 @@
+- args:
+    sql: DROP TABLE "public"."masterdata"
+  type: run_sql

hasura/migrations/1575607977672_create_table_public_masterdata/up.yaml

@@ -0,0 +1,8 @@
+- args:
+    sql: CREATE TABLE "public"."masterdata"("key" text NOT NULL, "value" jsonb NOT
+      NULL, PRIMARY KEY ("key") , UNIQUE ("key"));
+  type: run_sql
+- args:
+    name: masterdata
+    schema: public
+  type: add_existing_table_or_view