Settings Page

### Difficulty
Hard (1-3 people)

### Description
Add the settings page (`src/components/settings`) to the provider routes and add it to the side menu so users can navigate to it. Make the default configuration of `src/components/settings/mappicker.tsx`) based on the data pulled from the "team" document in Firebase (if any values are null then use the defaults that are already hardcoded in).

Fix the `saveDataToFirebase` so it uses only 1 firebase api call instead of 5. Also disable the "save" button while this function is occurring (make use of an isLoading state variable).