chore: remove jest -> cypress for unit tests

cypress/component/components/Emoji/isStringWithOnlyOneEmoji.cy.ts

@@ -0,0 +1,18 @@
+import { isStringWithOnlyOneEmoji } from '../../../../components/Emoji/isStringWithOnlyOneEmoji'
+
+describe('components/Emoji/isStringWithOnlyOneEmoji', () => {
+  it('returns true with a string with only one emoji', () => {
+    expect(isStringWithOnlyOneEmoji(':wave:')).equal(true)
+    expect(isStringWithOnlyOneEmoji(':smile:')).equal(true)
+  })
+
+  it('returns false with a string with multiple emoji or with text', () => {
+    expect(isStringWithOnlyOneEmoji(':wave: :smile:')).equal(false)
+    expect(isStringWithOnlyOneEmoji(':wave: some text')).equal(false)
+    expect(isStringWithOnlyOneEmoji('some text :wave:')).equal(false)
+  })
+
+  it('returns false with a string without emoji', () => {
+    expect(isStringWithOnlyOneEmoji('some text')).equal(false)
+  })
+})