fix(format): remove trailing padding for emoji renderer

[security-log]

Fixes #891

Changes

• Modified: format/formats.go
  • emoji(): include glamour.WithWordWrap(0).

Why

• The renderer introduced unwanted padding when converting short lines containing emoji. Disabling word wrap prevents Glamour from adding that padding.

How to reproduce

Before the fix

echo 'I :heart: Bubble Gum :candy:' | ./gum format -t emoji | sed 's/ /-/g'
I-❤-Bubble-Gum-🍬--------------------------------------------------------------

After the fix

echo 'I :heart: Bubble Gum :candy:' | ./gum format -t emoji | sed 's/ /-/g'
I-❤-Bubble-Gum-🍬

[tauraamui]

Hi! Can you add a test for this?

[security-log]

Done, the tests are in