API - add current password check when modifying it

fittrackee_client/src/locales/en/user.json

@@ -2,6 +2,7 @@
   "ADMIN": "Admin",
   "ALREADY_HAVE_ACCOUNT": "Already have an account?",
   "CONFIRM_ACCOUNT_DELETION": "Are you sure you want to delete your account? All data will be deleted, this cannot be undone",
+  "CURRENT_PASSWORD": "Current password",
   "EMAIL": "Email",
   "EMAIL_INFO": "Enter a valid email address.",
   "ENTER_PASSWORD": "Enter a password",
@@ -10,6 +11,7 @@
   "LANGUAGE": "Language",
   "LOGIN": "Login",
   "LOGOUT": "Logout",
+  "NEW_PASSWORD": "New password",
   "PASSWORD": "Password",
   "PASSWORD_INFO": "At least 8 characters required.",
   "PASSWORD_FORGOTTEN": "Forgot password?",