Add URL encoding for all input fields

[linear]

Description:

After find a bug in the submission of phone numbers to eHealth Exchange, we moved to do url encoding for the phone numbers (See QUE-84 for more detail). We should probably add URL encoding for all of our entry fields to allow for characters like spaces in given names to be properly processed.

Acceptance Criteria:

• All input fields for making a query: first and last name, phone number, and MRN are url encoded before making a request
• Add a generic url encoding function that can be applied to each of the input fields
• Update tests to reflect new encoding

[linear]

QUE-87 Add URL encoding for all input fields