feat: implement advanced comment features including reply and like functionality

- Added support for nested comments with reply functionality.
- Implemented like/unlike feature for comments and posts.
- Enhanced comment DTO to include reply count, like count, and like status.
- Updated comment and like services to handle new functionalities.
- Created new API endpoints for toggling likes and listing comments.
- Improved UI components for comments to support replies and likes with animations.
- Added localization for new comment-related messages.
- Introduced a TODO list for future enhancements in the comment module.

internal/service/like.go

@@ -1 +1,23 @@
 package service
+
+import (
+	"context"
+
+	"github.com/snowykami/neo-blog/internal/ctxutils"
+	"github.com/snowykami/neo-blog/internal/repo"
+	"github.com/snowykami/neo-blog/pkg/errs"
+)
+
+type LikeService struct{}
+
+func NewLikeService() *LikeService {
+	return &LikeService{}
+}
+
+func (ls *LikeService) ToggleLike(ctx context.Context, targetID uint, targetType string) (bool, error) {
+	currentUser, ok := ctxutils.GetCurrentUser(ctx)
+	if !ok {
+		return false, errs.ErrUnauthorized
+	}
+	return repo.Like.ToggleLike(currentUser.ID, targetID, targetType)
+}