fix: find error when modifying column names

[saravmajestic]

Overview

Problem

If schema.yml has entry only for model and no columns, then getting below error

TypeError: Cannot read properties of undefined (reading 'find')

Solution

use default array if columns are not added in schema.yml

Screenshot/Demo

A picture is worth a thousand words. Please highlight the changes if applicable.

How to test

• in schema.yml, create a model without columns
• sync with db from doc editor
• should not see any error

Checklist

• I have run this code and it appears to resolve the stated issue
• README.md updated and added information about my change

[anandgupta42]

@saravmajestic Can you add a test for this?

[saravmajestic]

@saravmajestic Can you add a test for this?

yes, will add it