feat: implement kList webapp with Flask framework

Adds complete Flask-based web application for server listing service, including routing, database integration, Discord OAuth, templates, static assets, and configuration.

Handles user authentication, server browsing, and admin dashboard functionality. BROKEN

src/ver/0.0.3/webapp/static/styles/navbar.css

@@ -0,0 +1,65 @@
+.center-container {
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            height: 80vh;
+            text-align: center;
+}
+body {
+  padding-bottom: 20px;
+}
+
+.navbar {
+  margin-bottom: 20px;
+}
+
+      .bd-placeholder-img {
+        font-size: 1.125rem;
+        text-anchor: middle;
+        -webkit-user-select: none;
+        -moz-user-select: none;
+        user-select: none;
+      }
+
+      @media (min-width: 768px) {
+        .bd-placeholder-img-lg {
+          font-size: 3.5rem;
+        }
+      }
+
+      .b-example-divider {
+        height: 3rem;
+        background-color: rgba(0, 0, 0, .1);
+        border: solid rgba(0, 0, 0, .15);
+        border-width: 1px 0;
+        box-shadow: inset 0 .5em 1.5em rgba(0, 0, 0, .1), inset 0 .125em .5em rgba(0, 0, 0, .15);
+      }
+
+      .b-example-vr {
+        flex-shrink: 0;
+        width: 1.5rem;
+        height: 100vh;
+      }
+
+      .bi {
+        vertical-align: -.125em;
+        fill: currentColor;
+      }
+
+      .nav-scroller {
+        position: relative;
+        z-index: 2;
+        height: 2.75rem;
+        overflow-y: hidden;
+      }
+
+      .nav-scroller .nav {
+        display: flex;
+        flex-wrap: nowrap;
+        padding-bottom: 1rem;
+        margin-top: -1px;
+        overflow-x: auto;
+        text-align: center;
+        white-space: nowrap;
+        -webkit-overflow-scrolling: touch;
+      }