Organize utility pages in both the front-end and back-end

[obuchheit]

-Make a directory called utilities in the front-end directory, and then move the utilities.jsx file into the directory.
-You will have to resolve the import errors on any pages that utilize the functions inside of utilities.jsx.
-Create another file called savedPostUtilities.jsx and move all of the Saved Post Logic in utilities.jsx, beneath line 107, to the new jsx file and fix any imports in where those functions are utilized.

-In the backend/marketplace_proj/ directory add a utils directory and put the utils.py file in that directory and fix the imports.