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.

style/style.css

@@ -0,0 +1,14 @@
+html, body, .body{
+    width: 100%;
+    height: 100%;
+    margin: 0%;
+    padding: 0%;
+    font-family: Verdana, Geneva, Tahoma, sans-serif;
+    background-color: #212529;
+    user-select: none;
+}
+
+.center{
+    display: flex;
+    align-items: center;
+}