Change how `SchemaDeployer` replaces target database in view defintions

[JCZuurmond]

Problem description

Currently, the SchemaDeployer replaces the hardcoded "$inventory" value to overwrite the catalog and schema given during initialisation in the view definitions. We want to avoid such a hardcoded value.

Proposed solution

An approach where $inventory is NOT hardcoded, possibly using sqlglot as we do in the dasboard-as-code here