Add JRPC API, reworked Login and User pages

Frontend/src/components/MainNavbar.svelte

@@ -0,0 +1,33 @@
+<script lang="ts">
+  import {
+    NavBrand,
+    NavHamburger,
+    NavLi,
+    NavUl,
+    Navbar,
+  } from "flowbite-svelte";
+
+  export let sidebarOpen: boolean;
+  export let sidebarOpenVisible: boolean;
+</script>
+
+<Navbar let:hidden let:toggle color="form">
+  {#if sidebarOpenVisible}
+    <NavHamburger on:click={() => (sidebarOpen = !sidebarOpen)} />
+  {/if}
+  <NavBrand href="/">
+    <span
+      class="self-center whitespace-nowrap text-xl font-semibold dark:text-white"
+    >
+      OpenAuth
+    </span>
+  </NavBrand>
+  <NavHamburger on:click={toggle} />
+  <NavUl {hidden}>
+    <NavLi href="/" active={true}>Home</NavLi>
+    <NavLi href="/user">User</NavLi>
+    <!-- <NavLi href="/services">Services</NavLi>
+    <NavLi href="/pricing">Pricing</NavLi>
+    <NavLi href="/contact">Contact</NavLi> -->
+  </NavUl>
+</Navbar>