gui_toolkit 0.38.2

Added

• ui.text_edit wraps and grows (wrap, auto_height, min_lines, max_lines): long lines break at the box's width at the font backend's line break opportunities (a word wider than the box between grapheme clusters); Up / Down / Home / End, clicks and drags follow the visual lines, the caret at the end of a wrapped line stays there (Text_Area.upstream); the box is as tall as its lines within the limits, then scrolls. ui.text_visual_lines, ui.visual_line_of, ui.Visual_Line (ui/text_lines.odin). Tests: tests/keyboard (text_edit_wrap_test.odin). Example: the composer of examples/fidget.
• Caret rectangle: Edit_Result.caret (box coordinates, this build) and ui.text_edit_caret_rect(a) (the caret and the selection's other end, window coordinates, as last drawn) for completion popovers and input method windows.