frontend: Add spacing to properties hint icon

[Warchamp7]

Description

Adds spacing to the hint icon in the PropertiesView for items that have a long description.

Motivation and Context

Icon is cramped.

Before	After

How Has This Been Tested?

👁

Types of changes

• Tweak (non-breaking change to improve existing functionality)

Checklist:

• I have read the contributing document.
• My code has been run through clang-format.
• My code follows the project's style guidelines
• My code is not on the master branch.
• My code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.

[RytoEX]

Looks fine at a glance.

[WizardCM]

If I remember correctly, the behaviour was slightly different on Windows vs macOS. Will need to be tested on both.