feat: Added footer component (#190)

* feat: Added footer component (#126)

* add/prepare component files

* make footer component basic

* improve FooterCopyright component

* add FooterLink component

* add/add FooterBrand Component

* add vertival align to FooterListGroup

* add/add footer icon component

* add/add FooterSitemapExample

* add/FooterSitemapLinks remained part

* add/add example

---------

Co-authored-by: Ilya Artamonov <hire@ilya-artamonov.ru>

* feat: Reworked footer component

* docs: Updated components section in README.md

---------

Co-authored-by: hirakei1203 <56023847+hirakei1203@users.noreply.github.com>

docs/components/footer/examples/FooterExample.vue

@@ -1,8 +1,17 @@
 <template>
-  <div class="vp-raw flex flex-col">
-    <Footer></Footer>
+  <div class="vp-raw">
+    <Footer>
+      <FooterCopyright by="Flowbite™" href="https://flowbite.com/" copyright-message="All Rights Reserved." />
+      <FooterLinkGroup>
+        <FooterLink href="#"> About </FooterLink>
+        <FooterLink href="#"> Privacy Policy </FooterLink>
+        <FooterLink href="#"> Licensing </FooterLink>
+        <FooterLink href="#"> Contact </FooterLink>
+      </FooterLinkGroup>
+    </Footer>
   </div>
 </template>
+
 <script setup>
-import { Footer } from '../../../../src/index'
+import { Footer, FooterCopyright, FooterLinkGroup, FooterLink } from '../../../../src/index'
 </script>