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.

controller/connection/Connection.controller.php

@@ -0,0 +1,65 @@
+<?php
+
+class Connection{
+    protected $lastID;
+
+    function __construct(){
+        $this->param = include 'param.php';
+    }
+
+    private function getConnection(){
+        $param = include 'param.php';
+        return mysqli_connect($param['host'], $param['username'], $param['password'], $param['dbname']);
+    }
+
+    protected function tableExists(string $table){
+        $tables = $this->getData("SHOW TABLES");
+        foreach($tables as $tableName){
+            if(strtolower($tableName[0]) == strtolower($table)){
+                return true;
+            }
+        }
+        return false;
+    }
+
+    protected function execNoQuery($sql){
+        $link = $this->getConnection();
+        if(mysqli_query($link, $sql)){
+            $this->lastID = mysqli_insert_id($link);
+            mysqli_close($link);
+        }else{
+            echo mysqli_error($link) . '<br><br>';
+        }
+    }
+
+    private function execQuery($sql){
+        $link = $this->getConnection();
+        $query = mysqli_query($link, $sql);
+        if(mysqli_close($link)){
+            return $query;
+        }else{
+            return null;
+        }
+    }
+    
+    protected function getValue($tableName, $nameParam1, $nameParam2, $valueSearh){
+        $sql = "SELECT $nameParam1 FROM $tableName WHERE $nameParam2='$valueSearh'";
+        $result = $this->execQuery($sql);
+        return mysqli_fetch_array($result)[$nameParam1];
+    }
+    
+    protected function getData($sql, $idColumn=null){
+        $result = $this->execQuery($sql);
+        $data = [];
+        $cont = 0;
+        while($row = mysqli_fetch_array($result)){
+            if($idColumn == null){
+                $data[$cont] = $row;
+                $cont++;
+            }else{
+                $data[$row[$idColumn]] = $row;
+            }
+        }
+        return $data;
+    }
+}

controller/connection/param.php

@@ -0,0 +1,9 @@
+<?php
+
+return [
+    "dbname" => "musicdb",
+    "username" => "root",
+    "password" => "",
+    "host" => "localhost"
+];
+