remove looking for engine on project view page (#7981)

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https://linear.app/thirdweb/issue/BLD-238/remove-looking-for-engine-hint-from-project-view

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## PR-Codex overview
This PR focuses on refining the rendering logic in the `page.tsx` file for a specific team page, particularly around the display of a billing plan alert and the conditions under which it is shown.

### Detailed summary
- Replaced a conditional rendering of the free billing plan alert from a ternary operator to a logical AND (`&&`) operator.
- Removed the `DismissibleAlert` component that provided information about engines and projects.
- Kept the `Changelog` component intact.

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<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

## Summary by CodeRabbit

* **Bug Fixes**
  * Resolved an issue where teams on paid plans saw an unnecessary alert on the team page. Paid teams will no longer see this message.
  * Free plan teams continue to see the upgrade banner as before.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: Yash094

apps/dashboard/src/app/(app)/team/[team_slug]/(team)/page.tsx

@@ -4,7 +4,6 @@ import { getInAppWalletUsage } from "@/api/analytics";
 import { getAuthToken } from "@/api/auth-token";
 import { getProjects, type Project } from "@/api/project/projects";
 import { getTeamBySlug } from "@/api/team/get-team";
-import { DismissibleAlert } from "@/components/blocks/dismissible-alert";
 import { getClientThirdwebClient } from "@/constants/thirdweb-client.client";
 import { loginRedirect } from "@/utils/redirects";
 import { Changelog } from "./_components/Changelog";
@@ -63,15 +62,8 @@ export default async function Page(props: {
           team={team}
         />
 
-        {team.billingPlan === "free" ? (
+        {team.billingPlan === "free" && (
           <FreePlanUpsellBannerUI highlightPlan="growth" teamSlug={team.slug} />
-        ) : (
-          <DismissibleAlert
-            preserveState={true}
-            description="Engines, contracts, project settings, and more are now managed within projects. Open or create a project to access them."
-            localStorageId={`${team.id}-engines-alert`}
-            title="Looking for Engines?"
-          />
         )}
 
         <Changelog />