* Adds the ability to search by dates
Adding extra „where“-conditions to the „TextSearch“ queries, allowing the users to search by dates
* Adds missing dates to $dates in models
* Removes duplicated „where“ conditions
* Adds the Searchable trait to models, defining the searchable attributes and relations
* Removes the old text search methods
* Adds back additional conditions to the search
These conditions could not be modeled in the „attributes“ or „relations“, so we include them here
* Removes unnecessary check for the deleted_at attribute
* Fixes typo in comments
* suppresses errors from Codacy
We can safely ignore the error codacy is throwing here, since this method is a standin/noop for models who need to implement more advanced searches
