authentication element fix

[webbsledge]

Automatic authentication was failing because the TDA authentication page element ID names have changed. This small change updates the authentication IDs in the code to correct for the current ID names.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 76.71%. Comparing base (728b9a0) to head (0a2a7f2).
Report is 2 commits behind head on main.

Files	Patch %	Lines
tdameritrade/auth/__init__.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #179   +/-   ##
=======================================
  Coverage   76.71%   76.71%           
=======================================
  Files          27       27           
  Lines        1091     1091           
  Branches      110      110           
=======================================
  Hits          837      837           
  Misses        239      239           
  Partials       15       15           

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