Polishing Kubernetes section view in Preferences (#3603)

* Using RemovableItem for items in Kubernetes page

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

* Helm Charts empty state

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

* Empty state for kubeconfig sync list

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

* Remove unused styles

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

* Fixing tests

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

src/renderer/components/cluster-settings/components/cluster-kubeconfig.tsx

@@ -43,7 +43,7 @@ export class ClusterKubeconfig extends React.Component<Props> {
 
   render() {
     return (
-      <Notice>
+      <Notice className="mb-14 mt-3">
         <SubTitle title="Kubeconfig" />
         <span>
           <a className="link value" onClick={this.openKubeconfig}>{this.props.cluster.kubeConfigPath}</a>