* This fixes the discount_ calculation logic
* This fixes the adjustment to be handled as a subtotal value in every calculation and applies the tax inclusive logic on the promotion value itself
* Added some testcases and revoked some changes to improve testing output
* Fixed a test case based on feedback
* Corrected promotion/admin test cases
* Corrected cart/store test case
* Improved cart/store test cases for more robust promotion testing considering tax inclusion flags
* Remove unnessary changes as adjustments now automatically are subtotals and therefore the tax inclusive flag does not need to be applied again
* Remove adjustments->is_tax_inclusive usage everywhere
* Migration script to remove is_tax_inclusive in cart line item adjustment
* Forgot to adjust one more testcase
* Corrections based on fPolic feedback
* Refactored PR to consider feedback from oliver
* Added more testcases for promotion in cart
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Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>
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