v0.2.2 — Editor polish: tables, DnD, covers & cards

What's New

Table Rendering Overhaul

• Fixed table HTML structure using PlateElement as="tr"/"td"/"th" — proper <table> semantics
• Floating toolbar for row/column operations (add, remove, delete table)

Drag & Drop — Table Safety

• Content inside table cells no longer gets drag handles
• useIsInsideTable hook traverses Slate tree to detect table ancestry
• Prevents table corruption from dragging cell content

Note Card Covers + Emoji Patterns

• Cards now display cover gradient at top when set
• Emoji icon rendered as tiled SVG pattern over covers (rotated grid, upright emojis)
• Pattern uses two emoji sizes per tile for visual depth

Consistent Card Heights

• All note cards are fixed 200px height
• Text fades out at bottom via CSS mask-image (no overlay seam)
• Footer (time, tags) pinned to bottom outside masked area

Other Fixes

• EmojiPicker positioning fix (parent-controlled absolute)
• Slash command /table uses official insertTable() API
• Fixed React hooks rules violations in DraggableBlock and ToggleZoneWrapper

Full Changelog: v0.2.1...v0.2.2