add method and route to search across tracks, albums and artists.

+ break models into separate files
+ same for the utils and setup

app/utils/generators.py

@@ -0,0 +1,19 @@
+import string
+from datetime import datetime
+import random
+
+
+def create_new_date():
+    """
+    It creates a new date and time string in the format of "YYYY-MM-DD HH:MM:SS"
+    :return: A string of the current date and time.
+    """
+    now = datetime.now()
+    return now.strftime("%Y-%m-%d %H:%M:%S")
+
+
+def get_random_str(length=5):
+    """
+    Generates a random string of length `length`.
+    """
+    return "".join(random.choices(string.ascii_letters + string.digits, k=length))