Reset VS Code zoom level back to 1

The UI window zoom level (`window.zoomLevel`) was set to `0.5` due to
some configurations changes made to the global system resolution
(4k rendering), but can now be changed back to the default value (`1`).

Resolves GH-198

snowblocks/visual-studio-code/settings.json

@@ -57,7 +57,7 @@
   "window.enableMenuBarMnemonics": false,
   "window.menuBarVisibility": "hidden",
   "window.titleBarStyle": "native",
-  "window.zoomLevel": 0.5,
+  "window.zoomLevel": 1,
   "workbench.activityBar.visible": false,
   "workbench.colorTheme": "Nord",
   "workbench.commandPalette.preserveInput": true,