feat: create a model for tasks with subtasks

src/query/mod.rs

@@ -3,7 +3,7 @@ use crate::errors::error_vec::ErrorVec;
 use crate::models::category::Category;
 use crate::models::project::Project;
 use crate::models::subtask::Subtask;
-use crate::models::task::Task;
+use crate::models::task::{Task, TaskWithSubtasks};
 
 pub(crate) mod tasks;
 pub(crate) mod projects;
@@ -13,6 +13,7 @@ pub(crate) mod subtasks;
 pub(crate) enum QueryValue {
     Projects(Vec<Project>),
     Tasks(Vec<Task>),
+    TasksWithSubtasks(Vec<TaskWithSubtasks>),
     Subtasks(Vec<Subtask>),
 }
 
@@ -26,5 +27,6 @@ pub(crate) enum QueryKey {
     Projects,
     Tasks,
     TasksInCategory(Category),
+    TasksWithSubtasksInCategory(Category),
     SubtasksOfTaskId(i32),
 }