fix: remove clickable behavior from disabled step on step component

[wermeson-lopes-brisa]

Description

The disabled step is not actually clickable unless the developer specifically makes it so due to some business rule. There is an adjustamen that can makes this possible, so make sure it is already done to start this issue.

Expected Behavior

When disabled, step shouldn't be clickable by default.

Additional Information

This improvement/adjustment is part of a package of improvements planned together. For full documentation, access the file here:
Novas Sugestões para Stepper do Ion.pdf.

Concluding

• remove clickable behavior from disabled step as default behavior