The delete buttons paired the minus-box with a double arrow (bidirectional
arrows next to the symbol) which reads as "resize/expand", not "delete".
Replace them with axis stripes plus the x delete marker that deleteTable
already established: vertical stripes with x for delete column, horizontal
stripes with x for delete row. Labels/tooltips were correct all along and
stay unchanged.
Closes#336
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012aoPvnakfBP28nAfijgUY9