New api endpoint integration

[tentamdin]

Description:
We are moving from static db file to new dedicated api endpoint for backend. We have to change the backend part of the flutter app.

Implementation:

• change all the model based on new schema
• change db repository file for endpoints
• api integration for Deites
• api integration for Gonpa
• api integration for Festival
• api integration for Pilgrimage
• all the search fields
• feedback changes

[tenkus47]

https://gompa-tour-api.onrender.com/docs

endpoint