Allow user to select Kubeconfig from filesystem (#740)

* Allow user to select Kubeconfig from filesystem, fix #738

Signed-off-by: Roman <ixrock@gmail.com>

Co-authored-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>
Co-authored-by: Alex Andreev <alex.andreev.email@gmail.com>

src/renderer/components/select/select.tsx

@@ -36,6 +36,7 @@ export class Select extends React.Component<SelectProps> {
   static defaultProps: SelectProps = {
     autoConvertOptions: true,
     menuPortalTarget: document.body,
+    menuPlacement: "auto",
   }
 
   @computed get theme() {