500 Error for invalid search parameters

[lucasmarchd01]

Following up on #1483, one of the main causes of 500 errors on our site is the use of invalid search parameters. These would only appear if the user is manually changing the value in the URL. For example:

https://cantusdatabase.org/source/620437/chants/?folio=104 will cause
Exception Type: ValueError
Exception Value: '104' is not in list

http://localhost/source/620437/chants/?feast=hello will cause
Exception Type: ValueError
Exception Value: Field 'id' expected a number but got 'hello'

We should include an exception block that checks for ValueError when retrieving search parameters anywhere on the site.