feat: Add footer component

src/components/__tests__/FooterComponent.spec.js

+import { mount } from '@vue/test-utils'
+import { describe, it, expect } from 'vitest'
+import FooterComponent from '../FooterComponent.vue';
+
+
+describe('FooterComponent', () => {
+    it('rendedrs without crashing', () => {
+        const wrapper = mount(FooterComponent, {
+            global: {
+                stubs: ['RouterLink']
+            }
+        })
+        expect(wrapper.exists()).toBe(true)
+    })
+})
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