Styling in style.ts, minor refactor

src/util/style.ts

@@ -0,0 +1,26 @@
+import { StyleSheet } from 'react-native';
+
+export const style = StyleSheet.create({
+  app: { // Outermost container
+    flex: 1,
+    backgroundColor: '#fff', // For the "entire" app
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  postsContainer: {
+    height: '100%',
+    padding: 5,
+    flex: 1,
+    alignItems: 'center',
+    justifyContent: 'flex-start',
+    backgroundColor: '#fff', // For the container holding the posts
+  },
+  postView: {
+    flexDirection: "row",
+    backgroundColor: '#fff',
+    paddingVertical: 5,
+  },
+  postFont: {
+    color: "#000",
+  },
+});