Update TypeScript to 3.9.3 (#1640)

Co-authored-by: tk338g <tkhazamov@wayfair.com>

src/data/index.ts

@@ -111,7 +111,7 @@ export const generateCollaborationLink = async () => {
   return `${window.location.origin}${window.location.pathname}#room=${id},${key}`;
 };
 
-const getImportedKey = (key: string, usage: string) =>
+const getImportedKey = (key: string, usage: KeyUsage) =>
   window.crypto.subtle.importKey(
     "jwk",
     {

src/element/newElement.ts

@@ -41,7 +41,7 @@ const _newElementBase = <T extends ExcalidrawElement>(
     height = 0,
     angle = 0,
     ...rest
-  }: ElementConstructorOpts & Partial<ExcalidrawGenericElement>,
+  }: ElementConstructorOpts & Omit<Partial<ExcalidrawGenericElement>, "type">,
 ) => ({
   id: rest.id || randomId(),
   type,