Add testimonials section with interactive functionality

Introduced a testimonials section to the homepage, including JavaScript for interactive switching and automatic cycling, as well as responsive styles in SCSS. Users can now view dynamic testimonials with associated images and text.

site/stylesheets/extra.scss

@@ -12,6 +12,7 @@
 @import 'modules/team';
 @import 'modules/footer';
 @import 'modules/home';
+@import 'modules/testimonials';
 
 @mixin transition{
   transition: all 0.5s ease;
@@ -68,6 +69,30 @@
   --md-typeset-a-color: #9d65cf;             // Helleres Violett für Links
 }
 
+::-moz-selection {
+  background: var(--md-primary-fg-color);;
+  color: #fff;
+}
+::selection {
+  background: var(--md-primary-fg-color);;
+  color: #fff;
+}
+
+::-webkit-scrollbar {
+  width: 10px;
+}
+
+/* Track */
+::-webkit-scrollbar-track {
+  background: #d0d0d0;
+  border-radius: 0;
+}
+
+/* Handle */
+::-webkit-scrollbar-thumb {
+  background: var(--md-primary-fg-color);
+}
+
 h1,h2,h3,h4,h5,h6 {
   color: #fff;
   a{
@@ -93,6 +118,29 @@ h1,h2,h3{
   color: #fff;
 }
 
+.md-search-result .md-typeset {
+  color: #fff;
+}
+
+.md-tabs{
+  color: #fff !important;
+}
+.md-tabs__link{
+  opacity: 1;
+}
+
+.md-search__form{
+  input::placeholder {
+    color: #fff !important;
+  }
+}
+
+
+
+.md-search-result__meta{
+  background-color: #000;
+}
+
 h1{
   &:after{