Bugfix: Ensure "No items found" is not truncated

[wutschel]

Description

This PR changes the layout of the the "No items found" label to ensure the text is not truncated in other languages.

Following changes are applied:

• Increase width and scale horizontally
• Use minimumScaleFactor = 0.8
• Use numberOfLines = 2 (in case not fitting into a single row, the text will expand to two rows)
• Remove icon and center align text

Screenshots (left = Version 1.15, middle = before this PR, right = this PR):

Summary for release notes

Bugfix: Ensure "No items found" is not truncated

[kambala-decapitator]

• Use numberOfLines = 2 (in case not fitting into a single row, the text will expand to two rows)

what if it doesn't fit 2 lines? Maybe set to 0 instead?

[wutschel]

The label's dimension wouldn't support more than 3 lines. The existing translations are also not that long.