Add route to users to check if username exists
Modify check user name fn to take in username as a parameter
Debugging the check username fn
add else to check username
Add route to users to check if username exists
Debugging the check username fn
add else to check username
Add route to users to check if username exists
Modify check user name fn to take in username as a parameter
Add experience function/calculation
Testing user save
Ensure that whenever user re-authenticates through fitbit, we save the new token credentials
Make sure username has default value so we can update it from clientside
Fix merge conflicts