[Button]: file-export-outline icon appears larger than other icons with the same button size

[ashablyka]

Description

The file-export-outline icon appears visually larger than other UUI icons when rendered with the same size value.
For example, with size={30}, file-export-outline occupies noticeably more space than neighboring icons.

Steps to Reproduce

1. Open the CodeSandbox example.
2. Render several UUI icons inside buttons with the same size, for example size={30}.
3. Compare file-export-outline with the other icons.

Actual result

file-export-outline is visually larger than the other icons despite using the same size value.

Expected result

Icons rendered with the same size value should have consistent visual dimensions and alignment.

Environment

• UUI version: 6.5.2
• Browser name: Chrome
• Operating System: Windows 11

[DeepMangeshT]

Hi, I'd like to work on this issue. I can reproduce the icon sizing inconsistency and will submit a fix with a regression test.