don't enforce tree line height

[Renari]

Description

This fixes text overlap caused when setting zoom to something higher than 100%.

Motivation and Context

resolves #824

Screenshots (if appropriate):

Before:

After:

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Non-Functional Change (non-user facing changes)

Checklist:

• My code follows the code style of this project (./gradlew check passes clean).
  • Tip: If you have lint issues just run ./gradlew :ktlintMainSourceSetFormat.
• I updated the version.
• I updated the changelog with the new functionality.