feat: sharpness (#1931)

* feat: sharpness

* feat: fill sharp lines, et al.

* fix: rotated positioning

* chore: simplify path with Q

* fix: hit test inside sharp elements

* make sharp / round buttons work properly

* fix tsc tests

* update snapshots

* update snapshots

* fix: sharp arrow creation error

* fix merge and test

* avoid type assertion

* remove duplicate helper

Co-authored-by: dwelle <luzar.david@gmail.com>

src/locales/en.json

@@ -25,6 +25,9 @@
     "sloppiness": "Sloppiness",
     "opacity": "Opacity",
     "textAlign": "Text align",
+    "edges": "Edges",
+    "sharp": "Sharp",
+    "round": "Round",
     "fontSize": "Font size",
     "fontFamily": "Font family",
     "onlySelected": "Only selected",