Preserve provider/account labels in formatting

Add logic to avoid cutting provider/account/window labels when formatting quota lines by introducing buildClassicNameTimeLine and buildClassicValueLine helpers. Update formatQuotaRows to prefer using full max width for the name/time line and to shrink padding for value/time before truncating, and clarify barWidth comments. Add tests for sidebar, compact, and classic/value row behaviors to ensure labels are preserved and lines stay within width limits. Also replace the Issues section in README with a Contributors badge.