Add new views and styles for music application

- Created new CSS files for styling the application, including home.css and style.css.
- Implemented 403 and 404 error views with appropriate messages and navigation.
- Developed a dump view to display deleted elements with restoration options.
- Enhanced home view to include music search functionality and display results.
- Added listplay view for managing music playlists, including creation and deletion options.
- Implemented loadmusic view for uploading new music with necessary fields.
- Created login and register views for user authentication.
- Developed sound view to display individual music tracks with playback controls and options for liking and deleting.
- Updated menu view to include navigation links based on user authentication status.

view/listplay.view.php

@@ -0,0 +1,43 @@
+<div class="body">
+    <?php include $views['menu']; ?>
+    <div class="container-fluid mt-4">
+        <?php if (!isset($_GET['listmusic'])) : ?>
+            <h1 class="text-muted">Listas de Reproducci&oacute;n</h1>
+            <div class="dropdown-divider"></div>
+            <?php if (count($listsName) == 0) : ?>
+                <h3 class="text-muted text-center">No hay listas de reproducci&oacute;n disponibles.</h3>
+            <?php else : ?>
+                <?php foreach ($listsName as $listName) : ?>
+                    <form action="" method="post" id="form_<?= $listName['listName'] ?>">
+                        <a href="./?view=<?= $view ?>&listmusic=<?= md5($listName['idList']) ?>">
+                            <h2 class="text-white"><i class="fas fa-plus"></i> <?= $listName['listName'] ?>
+                                <a href="#" onclick="document.getElementById('form_<?= $listName['listName'] ?>').submit()"><i class="fas fa-trash-alt text-danger cursor-pointer"></i></a>
+                                <input type="hidden" name="deleteList" value="<?= $listName['idList'] ?>">
+                            </h2>
+                        </a>
+                    </form>
+                <?php endforeach; ?>
+            <?php endif; ?>
+            <div class="dropdown-divider"></div>
+            <button class="btn btn-primary" id="show-add-new-list" onclick="onClick.home.hidden('new-list');onClick.home.hidden('show-add-new-list');">Nueva Lista</button>
+            <div id="new-list" hidden>
+                <br>
+                <form action="" method="post">
+                    <div class="form-group">
+                        <label for="listname" class="text-white">Nombre de Lista</label><br>
+                        <input type="text" name="txtListName" id="listname" minlength="3" required><br>
+                        <button class="btn btn-danger" type="button" onclick="onClick.home.hidden('new-list');onClick.home.hidden('show-add-new-list');">Cancelar</button>
+                        <button class="btn btn-primary" type="submit">Crear</button>
+                    </div>
+                </form>
+            </div>
+        <?php else : ?>
+            <h1 class="text-muted">Lista de Reproducci&oacute;n <?=$listMusics['listName']?></h1>
+            <div class="dropdown-divider"></div>
+            <?php foreach($listMusics['musics'] as $music):?>
+                <?php $sound = $music['music'];?>
+                <?php include $views['sound'];?>
+            <?php endforeach;?>
+        <?php endif; ?>
+    </div>
+</div>