feat: add an about command (#2)

### Explanation

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### Issue

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### Attestations

- [x] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [x] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [x] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [x] I have pinned the dependencies to a specific patch version.

### Style

- [x] I have run the linter and resolved any errors.
- [x] My pull request uses an appropriate title, matching the conventional commit standards.
- [x] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.

### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [ ] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [x] All new and existing tests pass locally with my changes.
- [x] Code coverage remains at or above the configured threshold.

### Documentation

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### Versioning

Minor - My pull request introduces a new non-breaking feature.

Reviewed-on: #2
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

test/locales.spec.ts

@@ -7,16 +7,74 @@
 import { describe, it, expect } from "vitest";
 import { supportedLocales, mappedLocales } from "../src/config/locales.js";
 
-const localesSupportedByLibretranslate = [ "ar", "az", "bg", "bn", "ca", "cs", "da", "de", "el", "en", "eo", "es", "et", "eu", "fa", "fi", "fr", "ga", "gl", "he", "hi", "hu", "id", "it", "ja", "ko", "lt", "lv", "ms", "nb", "nl", "pl", "pt", "ro", "ru", "sk", "sl", "sq", "sv", "th", "tl", "tr", "uk", "ur", "zh", "zt" ];
+const localesSupportedByLibretranslate = [
+  "ar",
+  "az",
+  "bg",
+  "bn",
+  "ca",
+  "cs",
+  "da",
+  "de",
+  "el",
+  "en",
+  "eo",
+  "es",
+  "et",
+  "eu",
+  "fa",
+  "fi",
+  "fr",
+  "ga",
+  "gl",
+  "he",
+  "hi",
+  "hu",
+  "id",
+  "it",
+  "ja",
+  "ko",
+  "lt",
+  "lv",
+  "ms",
+  "nb",
+  "nl",
+  "pl",
+  "pt",
+  "ro",
+  "ru",
+  "sk",
+  "sl",
+  "sq",
+  "sv",
+  "th",
+  "tl",
+  "tr",
+  "uk",
+  "ur",
+  "zh",
+  "zt",
+];
 
 describe("i18n locales", () => {
-  it.each(supportedLocales)("%s should be supported by libretranslate", (lang) => {
-    expect.assertions(1);
-    expect(localesSupportedByLibretranslate, `${lang} is not supported by libretranslate`).toContain(lang);
-  });
+  it.each(supportedLocales)(
+    "%s should be supported by libretranslate",
+    (lang) => {
+      expect.assertions(1);
+      expect(
+        localesSupportedByLibretranslate,
+        `${lang} is not supported by libretranslate`,
+      ).toContain(lang);
+    },
+  );
 
-  it.each(Object.values(mappedLocales))("%s should be mapped to a supported locale", (lang) => {
-    expect.assertions(1);
-    expect(supportedLocales, `${lang} is not supported by our app`).toContain(lang);
-  });
+  it.each(Object.values(mappedLocales))(
+    "%s should be mapped to a supported locale",
+    (lang) => {
+      expect.assertions(1);
+      expect(supportedLocales, `${lang} is not supported by our app`).toContain(
+        lang,
+      );
+    },
+  );
 });