atfq v0.1.2

Improve sidebar readability and resizing in the TUI.

• Sidebar section and chapter titles now use the same cyan accent as focused borders.
• Press + to widen the sidebar or - to shrink it, in steps of four columns.
• Drag the sidebar's right border with the mouse to resize it.
• The sidebar adapts to small terminals and restores its requested width when space is available.
• The bottom help bar shows +/- width. In search, + and - remain available for typing.

Static Linux binaries for x86_64 and aarch64 are attached, with SHA256 checksums and build provenance attestations.

Full changelog: v0.1.1...v0.1.2