learn and create strava wrapper api implementation with ts/fetch

.env exemple -> use that for testing purpose

• getLoggedInAthlete : ok

• getClubById : ok
• getClubActivitiesById

• username not defined inside the documentation for DetailedAthlete doc object
• bio same
• badge_type_id
• friend: any | null; // ?????
• follower : any | null; // ????
• check request with bool and array
• check stream request
• check upload request

• profile : string; // doc no present
• activity_types_icon : string; // doc no present
• dimensions : string[]; // doc no present
• localized_sport_type : string; // same
• description : string; // doc no present
• club_type : string; // doc no present
• website : string; // doc no present

member no prsent membership : 'member' | ???

thank s to https://github.com/franchyze923/Code_From_Tutorials/blob/master/Strava_Api/request_links.txt

1) Get authorization code from authorization page. This is a one time, manual step. 
Paste the below code in a browser, hit enter then grab the "code" part from the resulting url. 

https://www.strava.com/oauth/authorize?client_id=your_client_id&redirect_uri=http://localhost&response_type=code&scope=activity:read_all

2) Exchange authorization code for access token & refresh token

https://www.strava.com/oauth/token?client_id=your_client_id&client_secret=your_client_secret&code=your_code_from_previous_step&grant_type=authorization_code

3) View your activities using the access token just received

https://www.strava.com/api/v3/athlete/activities?access_token=access_token_from_previous_step

4) Use refresh token to get new access tokens

https://www.strava.com/oauth/token?client_id=your_client_id&client_secret=your_client_secret&refresh_token=your_refresh_token_from_previous_step&grant_type=refresh_token

• integration test
• entity system : some field mismatch between doc and api, for exemple some field missing, or could be null or no present
• unit test
• mocking test
• check upload
• check stream implementation