remove unnecessary prints

### current behavior:
there's 2 unnecessary print functions in UnderConstructionArea:add_file() method

### desired behavior:
remove the unnecessary prints

### reference:
https://github.com/abdelwahabram/shed/blob/64110a4761b9d239fbe348737a355f122a463b71/source/under_construction_area.py#L66C1-L74C25

The issue points to the UnderConstructionArea:add_file() method in source/under_construction_area.py lines 66-74. Open that file, locate the two print functions, and remove them. Verify the change by running any existing tests for the module or checking that the code still functions without the prints.

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