refactor: Extract login form into a dedicated modal, reorganize member modal, and relocate script tags.

index.html

@@ -55,6 +55,17 @@
             <div class="history-container">
                 <h2>Slektshistorie</h2>
                 <ul id="history-list">
+                    <!-- History items will be injected here -->
+                </ul>
+            </div>
+        </section>
+    </main>
+
+    <!-- Login Modal -->
+    <div id="login-modal" class="modal">
+        <div class="modal-content glass-panel login-box">
+            <h2>Velkommen til Røsstad</h2>
+            <p>Vennligst logg inn for å se slektstreet.</p>
             <form id="login-form">
                 <input type="email" id="email" placeholder="E-post" required>
                 <input type="password" id="password" placeholder="Passord" required>