[Feature] Deep freeze properties that should not get updated before evaluation

## Summary

Today I can add a binding like the following anywhere and cause data issues in my app.

```
Table1.tableData => {{ (()=>{ Api1.data = [{"hello": "world"}]; return Api1.data;})() }}
```

## Motivation

While the example above might look trivial, subtler versions like `.shift()` to get the first row (keys) from a google sheet can cause issues that would become really difficult for the user to debug later on.

Deep freezing will make sure that the user gets an error when they accidentally mutate an object that they're not supposed to.