make restore migration types required (#1977)

src/element/newElement.ts

@@ -210,13 +210,12 @@ export const updateTextElement = (
 export const newLinearElement = (
   opts: {
     type: ExcalidrawLinearElement["type"];
-    lastCommittedPoint?: ExcalidrawLinearElement["lastCommittedPoint"];
   } & ElementConstructorOpts,
 ): NonDeleted<ExcalidrawLinearElement> => {
   return {
     ..._newElementBase<ExcalidrawLinearElement>(opts.type, opts),
     points: [],
-    lastCommittedPoint: opts.lastCommittedPoint || null,
+    lastCommittedPoint: null,
   };
 };
 

src/element/types.ts

@@ -67,7 +67,7 @@ export type ExcalidrawLinearElement = _ExcalidrawElementBase &
   Readonly<{
     type: "arrow" | "line" | "draw";
     points: readonly Point[];
-    lastCommittedPoint?: Point | null;
+    lastCommittedPoint: Point | null;
   }>;
 
 export type PointerType = "mouse" | "pen" | "touch";