WebUI improvements: sidebar, tables, sorting, edit icon, mermaid fix#30
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…links - Sidebar: drag-to-resize handle (160–480px) with collapse/expand toggle button. Width and collapsed state persisted in localStorage. - Tables: proper borders, cell padding, header background, and hover rows. - Backlinks: clickable header toggles collapse; state persisted in localStorage.
Sort button in search bar cycles through Recent, A→Z path, and A→Z title. Icon reflects current mode (🕑/📂/🔤). Preference persisted in localStorage. API already returns pages sorted by modified DESC; path and title sorts are applied client-side.
Use inline SVG icons (recent/sort/A-Z) with currentColor fill so they adapt to light/dark theme. Attribution text removed from SVGs.
Two issues: (1) module-level mermaidCounter kept incrementing, generating new IDs each render — mermaid had already mutated the DOM nodes from the previous render, and Preact's dangerouslySetInnerHTML diffing reused them. (2) No key on the page-body div, so Preact could reconcile stale DOM. Fix: use a local counter (stable IDs per render) and add a key based on path+modified_at to force full DOM recreation after saves.
Replace the standalone edit button with a pencil SVG icon inline with the title. Icon is hidden by default and appears on hover, turning accent-colored on icon hover. Save/cancel buttons remain in page-actions when editing.
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Summary
A batch of WebUI quality-of-life improvements:
Resizable & collapsible sidebar
Table styling
Page list sorting
currentColorCollapsible backlinks panel
Inline edit icon
Bug fix: mermaid diagrams after edit+save
keyon page-body to force DOM recreation after saves