fix: show error message in MinistryCardGrid when API call fails

[Nitin23123]

Problem

The highlights section in MinistryCardGrid used a binary condition to
show either data or a "Loading..." message. If the API call failed, users
would see "Loading Highlights..." indefinitely with no indication of what
went wrong.

The error value from useActivePortfolioList was available but never
used in the JSX.

Fixes #155

Solution

Added an error state check in the highlights ternary so users get a clear
failure message when the API call fails, rather than a stuck loading state.

Before: data ? <highlights> : <Loading...>
After: data ? <highlights> : error ? <error message> : <Loading...>

Changes

• src/pages/OrganizationPage/components/MinistryCardGrid.jsx — added
  error branch to the highlights conditional render using error.main
  color from MUI theme for visual consistency

Testing

• When API succeeds: highlights render as before
• When API is pending: "Loading Highlights..." shown as before
• When API fails: "Failed to load highlights. Please check your connection
  and try again." shown in error styling

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a user experience issue in the MinistryCardGrid component where API failures for loading highlights would result in an endless loading message. By introducing an explicit error state, users now receive clear feedback when data cannot be fetched, improving the application's robustness and usability.

Highlights

• Error Handling: Implemented a new error state in the MinistryCardGrid component to display a user-friendly message when the API call for highlights fails, preventing an indefinite "Loading Highlights..." state.

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[gemini-code-assist]

Code Review

This pull request introduces an error message display in MinistryCardGrid.jsx when highlights fail to load. A suggestion was made to refactor the hardcoded error string into a constant for improved maintainability and future internationalization.

[Nitin23123]

Thanks for the feedback! I've extracted the hardcoded string into a HIGHLIGHTS_LOAD_ERROR constant defined above the component. This makes it easier to manage and sets up a clean pattern for future i18n.

[sehansi-9]

Suggested change

	color: "error.main",
	color: colors.textMuted,

for color consistency

[CLAassistant]

All committers have signed the CLA.

[ChanukaUOJ]

@Nitin23123 Can you sign the CLA.