Center the "Scan ID" column in the table

[olliviergassant]

Stack overflow link provides some instruction on what to do

https://stackoverflow.com/questions/47971275/how-to-align-the-text-to-center-of-cells-in-a-qtablewidget

[prjemian]

With #61 (PR #72), we'll need the setup() method to find which column (if any) has the Scan ID, then center it.

[prjemian]

This worked for me: https://stackoverflow.com/a/61722299