How to deploy att customizations

I have developed some customizations on the attestations module (att project), specifically on the "loss-preview-table" component.
How can I deploy these changes?

I tried to build the project with the "ng build --configuration dynamic att" command. I zip folder and rename it "Html_att" and then I tried to upload it with Software Loader, but the Attestation tab is no longer displayed on the Web Portal.
What are the steps to deploy these customizations?

Thanks in advance,

Fabio