Allow multiline text (#535)

* Allow multiline text

* Figure out offset correctly

* Run prettier

src/element/textWysiwyg.tsx

@@ -39,7 +39,7 @@ export function textWysiwyg({
     top: y + "px",
     left: x + "px",
     transform: "translate(-50%, -50%)",
-    textAlign: "center",
+    textAlign: "left",
     display: "inline-block",
     font: font,
     padding: "4px",
@@ -59,7 +59,7 @@ export function textWysiwyg({
       cleanup();
       return;
     }
-    if (ev.key === KEYS.ENTER) {
+    if (ev.key === KEYS.ENTER && !ev.shiftKey) {
       ev.preventDefault();
       if (ev.isComposing || ev.keyCode === 229) {
         return;