[Feature Request]: Review and made uniform the way a string's trim is applied where needed

### What would you like to happen?

In Hop, there are a lot of transforms where in their dialog gives the possibility to trim strings (es. DatabaseLookup, StringOperations, TextFileOutput, other ). Any transform uses a different approach to perform the string's trim. We would like to choose a new approach to perform string's trim (maybe by leveraging on Java String.trim function) and apply a refactoring to Hop code so that this same approach must be used everywhere needed

This issue is also in relationship with #2806

### Issue Priority

Priority: 3

### Issue Component

Component: Transforms

Start by comparing how string trimming is handled in the DatabaseLookup, StringOperations, and TextFileOutput transform dialogs, then review the related issue #2806. Define the common trimming approach before tracing its use across the other transforms. Done means the applicable transforms use one consistent trimming behavior.

Written by the indexing model from the issue text.