feat: move to Astro and mostly reworked the Pokémon Shuffle game

Signed-off-by: Avior <github@avior.me>

tests/README.md

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+# Tests
+
+Old Unit tests for each elements
+
+the paths should correspond to the base folder from `src`

tests/basic.test.ts

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+import { expect, test } from 'vitest'
+
+// Edit an assertion and save to see HMR in action
+
+test('Math.sqrt()', () => {
+	expect(Math.sqrt(4)).toBe(2);
+	expect(Math.sqrt(144)).toBe(12);
+	expect(Math.sqrt(2)).toBe(Math.SQRT2);
+});