Replace URL Strings with URL Object & Improve Variable Consistency

[jhancock532]

Link to Ticket On Codebase

Description of Changes Made

I've updated the Being at Torchbox page to reflect it's proper name, as well as ensuring consistency between API functions with variable names.

I've also updated all the internal URLs used across the site to reference the urls object. This change could also be made for the external URLs, as they are also a part of the TBX digital estate.

How to Test

Link to changes made on preview site

MR Checklist

• [x] Add a description of your pull request and instructions for the reviewer to verify your work.
• [x] If your pull request is for a specific ticket, link to it in the description.
• [x] Stay on point and keep it small so the merge request can be easily reviewed.
• [x] Consider adding unit tests, especially for bug fixes. If you don't, tell us why.
• [x] Tests and linting passes.
• [x] Consider updating documentation. If you don't, tell us why.
• [x] If relevant, list the environments / browsers in which you tested your changes.