fix: prevent double-click to edit/create text scenarios on line (#9597)

* fix : double click on line enables line editor

* fix : prevent double-click to edit/create text
when inside line editor

* refactor: use lineCheck instead of arrowCheck in
doubleClick handler to align with updated logic

* fix: replace negative arrowCheck with lineCheck in
dbl click handler and fix double-click bind text
test in linearElementEditor tests

* clean up test

* simplify check

* add tests

* prevent text editing on dblclick when inside arrow editor

---------

Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>

packages/element/src/typeChecks.ts

@@ -129,6 +129,15 @@ export const isElbowArrow = (
   return isArrowElement(element) && element.elbowed;
 };
 
+/**
+ * sharp or curved arrow, but not elbow
+ */
+export const isSimpleArrow = (
+  element?: ExcalidrawElement,
+): element is ExcalidrawArrowElement => {
+  return isArrowElement(element) && !element.elbowed;
+};
+
 export const isSharpArrow = (
   element?: ExcalidrawElement,
 ): element is ExcalidrawArrowElement => {