allow to install VPP apps without scripts (#22365)

for #22352

# Checklist for submitter

If some of the following don't apply, delete the relevant line.

<!-- Note that API documentation changes are now addressed by the
product design team. -->

- [x] Added/updated tests
- [x] Manual QA for all new/changed functionality

frontend/pages/hosts/details/cards/Software/HostSoftwareTableConfig.tests.tsx

@@ -80,4 +80,21 @@ describe("generateActions", () => {
     const actions = generateActions(props);
     expect(actions.find((a) => a.value === "uninstall")).toBeUndefined();
   });
+
+  it("allows to install VPP apps even if scripts are disabled", () => {
+    const props: generateActionsProps = {
+      ...defaultProps,
+      hostScriptsEnabled: false,
+      app_store_app: {
+        app_store_id: "1",
+        self_service: false,
+        icon_url: "",
+        version: "",
+        last_install: { command_uuid: "", installed_at: "" },
+      },
+    };
+    const actions = generateActions(props);
+    expect(actions.find((a) => a.value === "install")?.disabled).toBe(false);
+    expect(actions.find((a) => a.value === "uninstall")).toBeUndefined();
+  });
 });

frontend/pages/hosts/details/cards/Software/HostSoftwareTableConfig.tsx

@@ -94,8 +94,9 @@ export const generateActions = ({
     actions.splice(indexUninstallAction, 1);
     actions.splice(indexInstallAction, 1);
   } else {
-    // if host's scripts are disabled, disable install/uninstall with tooltip
-    if (!hostScriptsEnabled) {
+    // if host's scripts are disabled, and this isn't a VPP app, disable
+    // install/uninstall with tooltip
+    if (!hostScriptsEnabled && !app_store_app) {
       actions[indexInstallAction].disabled = true;
       actions[indexUninstallAction].disabled = true;