fix: theme support for text fields input and place holder values

[harsh62]

Description of changes:

Making Text Fields follow the Authenticator theme.

• The input values theme would now map to theme.colors.foreground.secondary
• The placeholder values theme now map to theme.colors.foreground.disabled

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 44.46%. Comparing base (a94155b) to head (b513498).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #100   +/-   ##
=======================================
  Coverage   44.46%   44.46%           
=======================================
  Files          43       43           
  Lines        2456     2456           
=======================================
  Hits         1092     1092           
  Misses       1364     1364           

Flag	Coverage Δ
Authenticator	44.46% <ø> (ø)

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