style: adjust filter button height

[mstrasinskis]

Motivation

Adjust the height of the filter buttons to ensure better alignment with the segment component. Since both components use button styles internally, simply removing any extra secondary styles should suffice to achieve uniform height.

Changes

• remove button min-heigh (it shouldn't be so big here)
• use negative margin to remove increased height from secondary button borders.

Tests

Manually

Todos

• Add entry to changelog (if necessary).
  Not necessary.