Added option to set custom greetings. Moved HomeHeader to separate file. Cleaned up README file

client/src/components/Home/Header/functions/greeter.ts

@@ -0,0 +1,17 @@
+export const greeter = (): string => {
+  const now = new Date().getHours();
+  let msg: string;
+
+  const greetingsSchemaRaw =
+    localStorage.getItem('greetingsSchema') ||
+    'Good evening!;Good afternoon!;Good morning!;Good night!';
+  const greetingsSchema = greetingsSchemaRaw.split(';');
+
+  if (now >= 18) msg = greetingsSchema[0];
+  else if (now >= 12) msg = greetingsSchema[1];
+  else if (now >= 6) msg = greetingsSchema[2];
+  else if (now >= 0) msg = greetingsSchema[3];
+  else msg = 'Hello!';
+
+  return msg;
+};