Macros: Prevent duplicates

[immrsd]

Although duplicated components anyway result in compilation error, I think it can be helpful to add the check and corresponding error message

[ericnordelo]

This should give a compilation error from the Component being imported twice. I think we should avoid front-running compilation errors, to maintain the macro as simple as possible.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.35%. Comparing base (f301f03) to head (5fd8a8d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1508   +/-   ##
=======================================
  Coverage   92.35%   92.35%           
=======================================
  Files          82       82           
  Lines        2264     2264           
=======================================
  Hits         2091     2091           
  Misses        173      173           

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