Remove the need to press ctrl while zooming

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

src/components/views/elements/ImageView.js

@@ -79,7 +79,6 @@ export default class ImageView extends React.Component {
     };
 
     onWheel = (ev) => {
-        if (ev.ctrlKey) {
         ev.stopPropagation();
         ev.preventDefault();
         const newZoom =this.state.zoom - ev.deltaY;
@@ -96,7 +95,6 @@ export default class ImageView extends React.Component {
             zoom: newZoom,
         });
     }
-    }
 
     onRedactClick = () => {
         const ConfirmRedactDialog = sdk.getComponent("dialogs.ConfirmRedactDialog");