fix(components): render full-width spaces in Spacer#55
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Previously, Spacer.Render(width) returned lines containing only a
single space character, ignoring the width parameter entirely. This
caused Spacer to collapse to 1 character wide regardless of the
container width, breaking layout when used inside Box or other
width-aware components.
Fix:
- Change each line to strings.Repeat(" ", width) so Spacer occupies
the full available width.
- Add comprehensive tests covering single/multi lines, zero width,
zero lines, width=1, and large width scenarios.
- Add strings import required by the fix.
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Previously, Spacer.Render(width) returned lines containing only a single space character, ignoring the width parameter entirely. This caused Spacer to collapse to 1 character wide regardless of the container width, breaking layout when used inside Box or other width-aware components.
Fix: