Implemented XML Formatter and simplified structure of XML tools (#229)

Co-authored-by: Adam Bem <adam.bem@zoho.eu>
Reviewed-on: #229
Reviewed-by: Mikolaj Widla <widlam@noreply.example.com>

Frontend/src/components/landing/LandingComponent.vue

@@ -3,7 +3,16 @@
 </script>
 
 <template>
-  <h1 class="text-3xl underline">Landing</h1>
+  <div class="dark:text-slate-100">
+    <h1 class="text-3xl mb-4">Welcome to Release11 Tools</h1>
+    <h2 class="text-xl">Our toolset is split to three main categories:</h2>
+    <ol class="list-decimal ml-5">
+      <li><strong>XML</strong> - containing various tools that allow to validate and transform any XML</li>
+      <li><strong>Formatter</strong> - containing tools for formatting text files in various formats</li>
+      <li><strong>REST</strong> - consist of Mock that allows to create mocked REST endpoint</li>
+    </ol>
+  </div>
+  
 </template>
 
 <style scoped></style>