Redesign idea (#343)

* Redisign idea

* Code cleanup

* Fixed to right container

* Reoredered layout

* Reordering panels

* Export dialog

* Removed redunant code

* Fixed not removing temp canvas

* Fixed preview not using only selected elements

* Returned file name on export

* Toggle export selected/all elements

* Hide copy to clipboard button if no support of clipboard

* Added border to swatches

* Fixed modal flickering

src/utils.ts

@@ -62,3 +62,20 @@ export function debounce<T extends any[]>(
     handle = window.setTimeout(() => fn(...args), timeout);
   };
 }
+
+export function selectNode(node: Element) {
+  const selection = window.getSelection();
+  if (selection) {
+    const range = document.createRange();
+    range.selectNodeContents(node);
+    selection.removeAllRanges();
+    selection.addRange(range);
+  }
+}
+
+export function removeSelection() {
+  const selection = window.getSelection();
+  if (selection) {
+    selection.removeAllRanges();
+  }
+}