migration command added, OTP creds can be read from environment variables, json output is now formated nicely

commands/helper.py

@@ -1,4 +1,5 @@
 import click
+import json
 
 from dataclasses import dataclass
 from pyotp import TOTP
@@ -11,6 +12,10 @@ class OTPCredentials:
     seed: str
 
     def get_json(self):
-        print(self.name, self.realm, self.seed)
         r = {"name": self.name, "realm": self.realm, "token": TOTP(self.seed).now()}
         return r
+
+
+def load_dump_pretty(content):
+    parsed = json.loads(content)
+    return json.dumps(parsed, indent=4, sort_keys=True)