Open file select dialog from onClick event (#1637)

Signed-off-by: Lauri Nevala <lauri.nevala@gmail.com>

src/renderer/components/+extensions/extensions.tsx

@@ -515,7 +515,7 @@ export class Extensions extends React.Component {
                   <Icon
                     interactive
                     material="folder"
-                    onMouseDown={prevDefault(this.installFromSelectFileDialog)}
+                    onClick={prevDefault(this.installFromSelectFileDialog)}
                     tooltip={<Trans>Browse</Trans>}
                   />
                 }