Module/profile page

[BenGamma]

Main work on the profile pages, on track for the v0.5.0 release 🚀

/settings page :

• I renamed the page /profile into /settings, which is your personal settings page where you can edit your informations.
• added 2 packages : react-calendar and react-flag-select to help building the form fields.
• build the frontend based on mockups
• All the fields are editable and on click on the update button, it updates the profile on firebase aswell.
  Close [page] user Profile #507

/u/username page :

• based on the :username param in the url, I load the informations from the db
• build and display the profile informations based on the mockups

TODO before v0.5.0 release

• merge the branch module/map
• link the profiles data to the map
• link/update the map datastructure to the profile. For example now a profile doesn't have a type field (shredder worspace, community builder...)
  and as said in feat/module/map/frontend #517 :
• Hook up data from firebase (map and pins + filters)
• Take My Pin button somewhere
• Debug weird problem where map resets to the center for some odd reason

[chrismclarke]

So. Much. Code!!

But it seems in good shape 👍 , nice separation across the various components, helpers etc. There's definitely a lot here and haven't tested extensively, but what I have works as expected and I really like all the small features like adding to the map, social icons, calendar icons, calendar etc., so again really nice one. Marked as approved so merge at will

I've added the following minor commits:

1. Change user.models.ts to pull timestamp model from a common model instead of firebase. Ideally it would be best to keep any references to firebase in as few places as possible to make it easier to replace in the future, so this is my own fault for doing elsewhere first.

2. Fix minor error thrown when the user doesn't have a location saved but trying to access user.location.value or user.location.latlng.lat.