typo fix Update models.py

[petryshkaCODE]

Pull Request Title: Typo fix in models.py

Description:

This pull request fixes a typo in the models.py file where "notificaiton" was corrected to "notification."

Changes:

• Corrected the spelling of "notificaiton" to "notification."

File(s) Modified:

• models.py

Reasoning:

Fixing the typo ensures correct spelling, which improves code clarity and prevents confusion.

Checklist:

• The code follows the project's coding guidelines.
• All relevant tests are passing.
• I have updated the documentation (if necessary).
• I have tested the changes locally.

Related Issues:

N/A

Additional Notes:

N/A