restore composer.json, add mysqli extension

public/vendor/dashboard/app-assets/css/plugins/file-uploaders/dropzone.css

@@ -0,0 +1,103 @@
+/*========================================================
+        DARK LAYOUT
+=========================================================*/
+.dropzone
+{
+    min-height: 350px;
+
+    border: 2px dashed #7367f0;
+    background: #f8f8f8;
+}
+.dropzone .dz-message
+{
+    font-size: 2rem;
+
+    position: absolute;
+    top: 50%;
+    left: 0;
+
+    width: 100%;
+    height: 300px;
+    margin-top: -30px;
+
+    text-align: center; 
+
+    color: #7367f0;
+}
+.dropzone .dz-message:before
+{
+    font-family: 'feather';
+    font-size: 80px;
+    font-weight: normal;
+    line-height: 1;
+
+    position: absolute;
+    z-index: 2;
+    top: 48px;
+    left: 50%;
+
+    display: inline-block;
+
+    width: 80px;
+    height: 80px;
+    margin-left: -40px;
+
+    content: '\e864';
+    text-indent: 0;
+
+    color: #7367f0;
+
+    -webkit-font-smoothing: antialiased;
+}
+.dropzone .dz-preview
+{
+    background: transparent;
+}
+.dropzone .dz-preview .dz-error-mark,
+.dropzone .dz-preview .dz-success-mark
+{
+    background-image: url('../../../images/dropzone/spritemap.png');
+}
+.dropzone .dz-preview .dz-error-message
+{
+    top: 0;
+    left: 0; 
+
+    min-width: 113px;
+}
+.dropzone .dz-preview .dz-remove
+{
+    font-size: 1.1rem;
+    line-height: 2rem; 
+
+    color: #ea5455;
+}
+.dropzone .dz-preview .dz-remove:before
+{
+    font-family: 'feather';
+    font-weight: normal;
+    line-height: 1;
+
+    z-index: 2;
+
+    display: inline-block;
+
+    content: '\e8f6';
+    text-indent: 0;
+
+    -webkit-font-smoothing: antialiased;
+}
+.dropzone .dz-preview .dz-remove:hover
+{
+    text-decoration: none;
+
+    color: #e42728;
+}
+
+@media (max-width: 576px)
+{
+    .dropzone .dz-message:before
+    {
+        top: 7.14rem;
+    }
+}