feat: [View/Update institution profile] Create a shared page-level alert for when API is unreachable

[meissadia]

Closes #1054

Changes

• Create a shared page-level alert for when API is unreachable
• Add API down page-level alert to Update institution profile page

How to test this PR

1. Visit View institution profile
2. Use Chrome devtools to block Institution API requests
3. Reload page
4. Verify page-level alert and no crashes
5. Visit Update institution profile
6. Verify page-level alert and no crashes

Screenshots

View institution profile (api down)

Update institution profile (api down)

Update institution profile: LEI alert and Email domain(s) language

[meissadia]

Verify: Underline links in page-level alerts

[natalia-fitzgerald]

@meissadia The alert looks good. The intro text is not updated but I assume that once the other PR gets merged I will see those changes? If so I can approve this PR.

Is this screenshot misplaced?