feat(video-page): add related videos section with shorts and regular videos

- Add new related videos section with styling for shorts and regular videos
- Implement logic to load and display related videos based on current video category
- Restructure video page layout to accommodate new related videos section
- Add shuffle functionality for video recommendations

css/video.css

@@ -1,14 +1,21 @@
 .video-content-wrapper {
-  flex: 1;  
   display: flex;
-  flex-direction: column;
-  overflow-y: auto; 
+  gap: 24px;
   padding: 24px;
   background-color: #121212;
+  flex: 1;
+  overflow: hidden;
+}
+
+.video-main-section {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  overflow-y: auto;
 }
 
 .video-player {
-  width: 70%;
+  width: 100%;
   aspect-ratio: 16 / 9;
   margin-bottom: 20px;
   border-radius: 20px;
@@ -28,9 +35,11 @@
 }
 
 .video-info-container {
-  margin-left: 30px;
-  margin-right: 30px;
+  width: 100%;
   margin-bottom: 20px;
+  padding: 1px;
+  border: 1px solid #000000;
+  box-sizing: border-box;
 }
 
 .video-title {
@@ -255,9 +264,11 @@
 }
 
 .comments-section {
-  margin-left: 30px;
-  margin-right: 30px;
+  width: 100%;
   margin-bottom: 40px;
+  padding: 1px;
+  border: 1px solid #000000;
+  box-sizing: border-box;
 }
 
 .comments-header {
@@ -383,3 +394,163 @@
 .comment-action-btn i {
   font-size: 16px;
 }
+
+.related-videos-section {
+  width: 400px;
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+  overflow-y: auto;
+  flex-shrink: 0;
+}
+
+.section-title {
+  font-size: 16px;
+  font-weight: 600;
+  color: #ffffff;
+  margin: 0 0 12px 0;
+}
+
+.shorts-section {
+  display: flex;
+  flex-direction: column;
+}
+
+.shorts-list {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 12px;
+}
+
+.short-item {
+  position: relative;
+  width: 100%;
+  padding-top: 177.78%; /* 9:16 ratio */
+  background-color: #272727;
+  border-radius: 8px;
+  overflow: hidden;
+  cursor: pointer;
+  transition: transform 0.2s ease, box-shadow 0.2s ease;
+}
+
+.short-item:hover {
+  transform: translateY(-4px);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
+}
+
+.short-thumbnail {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+}
+
+.short-thumbnail img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+.short-info {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  padding: 8px;
+  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
+}
+
+.short-title {
+  font-size: 14px;
+  font-weight: 600;
+  color: #ffffff;
+  margin: 0 0 4px 0;
+  line-height: 1.4;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+
+.short-channel {
+  font-size: 12px;
+  color: #aaaaaa;
+  margin: 0 0 2px 0;
+}
+
+.short-views {
+  font-size: 12px;
+  color: #aaaaaa;
+  margin: 0;
+}
+
+.regular-videos-section {
+  display: flex;
+  flex-direction: column;
+}
+
+.regular-videos-list {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.regular-video-item {
+  display: flex;
+  gap: 12px;
+  cursor: pointer;
+  transition: background-color 0.2s;
+  border-radius: 12px;
+  padding: 8px;
+}
+
+.regular-video-item:hover {
+  background-color: #272727;
+}
+
+.regular-video-thumbnail {
+  width: 168px;
+  height: 94px;
+  border-radius: 8px;
+  overflow: hidden;
+  flex-shrink: 0;
+  background-color: #272727;
+}
+
+.regular-video-thumbnail img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+.regular-video-info {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  justify-content: flex-start;
+}
+
+.regular-video-title {
+  font-size: 14px;
+  font-weight: 600;
+  color: #ffffff;
+  margin: 0 0 6px 0;
+  line-height: 1.4;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+
+.regular-video-channel {
+  font-size: 12px;
+  color: #aaaaaa;
+  margin: 0 0 4px 0;
+}
+
+.regular-video-meta {
+  font-size: 12px;
+  color: #aaaaaa;
+  margin: 0;
+}