Blueprints: selected Blueprint Empty state action

Add action in the Images Table empty state when Blueprint is selected.
Change the icon to plus as it better underlines the action needed to remedy.

src/Components/Blueprints/BuildImagesButton.tsx

@@ -1,12 +1,20 @@
 import React from 'react';
 
-import { Button } from '@patternfly/react-core';
+import { Button, ButtonProps } from '@patternfly/react-core';
 
 import { selectSelectedBlueprintId } from '../../store/BlueprintSlice';
 import { useAppSelector } from '../../store/hooks';
 import { useComposeBlueprintMutation } from '../../store/imageBuilderApi';
 
-export const BuildImagesButton = () => {
+type BuildImagesButtonPropTypes = {
+  variant?: ButtonProps['variant'];
+  children?: React.ReactNode;
+};
+
+export const BuildImagesButton = ({
+  variant,
+  children,
+}: BuildImagesButtonPropTypes) => {
   const selectedBlueprintId = useAppSelector(selectSelectedBlueprintId);
   const [buildBlueprint, { isLoading: imageBuildLoading }] =
     useComposeBlueprintMutation();
@@ -19,8 +27,9 @@ export const BuildImagesButton = () => {
       onClick={onBuildHandler}
       isDisabled={!selectedBlueprintId}
       isLoading={imageBuildLoading}
+      variant={variant}
     >
-      Build images
+      {children ? children : 'Build images'}
     </Button>
   );
 };