Improve readability of financial aid application Note (#1534)

The financial aid application note had all three date milestones crammed
into a single line, making it harder to scan.

- Added `<br />` tags to split the note into three distinct lines:
  - Applications open date
  - First-round deadline
  - Second-round deadline

```mdx
<Note>Applications opened on **18 March 2026**. <br /> First-round deadline: **6 April 2026**. <br /> Second-round deadline: **8 May 2026** ([Anywhere on Earth][AoE]).</Note>
```

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: egeakman <75242929+egeakman@users.noreply.github.com>

Author: Copilot

src/content/pages/finaid.mdx

@@ -66,7 +66,7 @@ for a grant:
 
 ## How to apply
 
-<Note>Applications opened on **18 March 2026**. First-round deadline: **6 April 2026**. Second-round deadline: **8 May 2026** ([Anywhere on Earth][AoE]).</Note>
+<Note>Applications opened on **18 March 2026**. <br /> First-round deadline: **6 April 2026**. <br /> Second-round deadline: **8 May 2026** ([Anywhere on Earth][AoE]).</Note>
 
 The data we collect on this form will exclusively be used by our Financial Aid
 team for the selection of grant recipients and the processing of financial