feat: add redirect to create a canonical short URL for donations (and…

… others to come) (#350)

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## PR Checklist

- [ ] Addresses an existing open issue: fixes #000
- [ ] That issue was marked as [`status: accepting
prs`](https://github.com/JoshuaKGoldberg/boston-ts-website/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3A+accepting+prs%22)
- [x] Steps in
[CONTRIBUTING.md](https://github.com/JoshuaKGoldberg/boston-ts-website/blob/main/.github/CONTRIBUTING.md)
were taken

## Overview

<!-- Description of what is changed and how the code change does that.
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---------

Co-authored-by: Xavier Ruiz <[email protected]>

vercel.json

@@ -0,0 +1,14 @@
+{
+	"redirects": [
+		{
+			"destination": "https://opencollective.com/boston-ts-club",
+			"permanent": true,
+			"source": "/donate"
+		},
+		{
+			"destination": "https://docs.google.com/forms/d/e/1FAIpQLSevxqyXjEE2AQ8C7xxkmoiiasr5ONIvPyAl8ad-MseNZ2ZBxA/viewform",
+			"permanent": false,
+			"source": "/feedback"
+		}
+	]
+}