feat(text-area): initial setup & input label

Setup index.js, test and .vue files along with initial label
state and test

src/components/CvTextArea/CvTextArea.vue

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+<template>
+  <div :class="`cv-text-area ${carbonPrefix}--form-item`">
+    <label :class="[`${carbonPrefix}--label`]">
+      {{ label }}
+    </label>
+  </div>
+</template>
+
+<script setup>
+import { carbonPrefix } from '../../global/settings';
+
+const props = defineProps({
+  label: String,
+});
+</script>

src/components/CvTextArea/__tests__/CvTextArea.spec.js

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+import { render } from '@testing-library/vue';
+import CvTextArea from '..';
+
+describe('CvTextArea', () => {
+  it("renders label when 'label' prop is passed", () => {
+    const dummyLabel = 'Dummy Label';
+    const { getByText } = render(CvTextArea, {
+      props: { label: dummyLabel },
+    });
+
+    const label = getByText(dummyLabel);
+    expect(label.tagName).toBe('LABEL');
+    expect(label.textContent).toBe(dummyLabel);
+  });
+});

src/components/CvTextArea/index.js

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+import CvTextArea from './CvTextArea.vue';
+
+export { CvTextArea };
+export default CvTextArea;