Dragging the left width handle of a symbol's text changed its width but
kept its position, which is its left edge: the right edge moved with the
drag and the text jumped away from where the user held it. Now the edge
opposite the dragged handle stays in place, as in a drawing program and
as the corner handles of a free text already do (TextResizeHandles). It
is found along the text's own baseline, so a rotated text behaves the
same. Undo restores width and position together, with TextResizeCommand.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>