refactor(validation): Update task name and description regex patterns

- Updated the regex pattern for TASK_NAME to ensure:
  - Minimum of 3 characters and a maximum of 50 characters.
  - No leading or trailing spaces.
  - No consecutive spaces.

- Updated the regex pattern for TASK_DESCRIPTION to ensure:
  - A maximum of 500 characters.
  - No leading or trailing spaces.
  - No consecutive spaces.

New patterns:
- const TASK_NAME_REGEX = /^(?!.*\s{2,})(?!\s)(.{2,50}?)(?<!\s)$/;
- const TASK_DESCRIPTION_REGEX = /^(?!.*\s{2,})(?!\s)(.{0,500}?)(?<!\s)$/;

src/utils/validationUtils.js

@@ -10,8 +10,8 @@ const DISPLAY_NAME_REGEX = /^(?!.*\s{2,})[^\s](.{0,18}[^\s])?$|^$/; // Check if
 const CLASS_CODE_REGEX = /^[A-Z0-9]{6}$/; // Check if the class code is valid (exactly 6 characters, uppercase letters and numbers only)
 const CLASS_NAME_REGEX = /^(?!\s*$)[a-zA-Z0-9\s]{1,50}$/; // Check if the class name is valid (at least 1 character, alphanumeric characters and spaces only, cannot be empty or just spaces or symbols)
 const STUDENT_NAME_REGEX = /^(?!.*\s{2,})[^\s](.{0,18}[^\s])?$|^$/; // Check if the student name is valid (no more than 20 characters, no leading or trailing spaces, no consecutive spaces)
-const TASK_NAME_REGEX = /^[a-zA-Z0-9\s]{1,50}$/; // Check if the task name is valid (at least 1 character, alphanumeric characters and spaces only)
-const TASK_DESCRIPTION_REGEX = /^[a-zA-Z0-9\s]{1,500}$/; // Check if the task description is valid (at least 1 character, alphanumeric characters and spaces only)
+const TASK_NAME_REGEX = /^(?!.*\s{2,})(?!\s)(.{2,50}?)(?<!\s)$/; // Check if the task name is valid (at least 3 characters, no more than 50 characters, no leading or trailing spaces, no consecutive spaces)
+const TASK_DESCRIPTION_REGEX = /^(?!.*\s{2,})(?!\s)(.{0,500}?)(?<!\s)$/; // Check if the task description is valid (no more than 500 characters, no leading or trailing spaces, no consecutive spaces)
 
 /**
  * @function validateEmail - Validate an email address.

tests/utils/validationUtils.test.js

@@ -389,8 +389,16 @@ describe("validateTaskName", () => {
     expect(validateTaskName("a".repeat(51))).toBe(false);
   });
 
-  test("should return false for a task name with special characters", () => {
-    expect(validateTaskName("Task@Name!")).toBe(false);
+  test("should return false for a task name with leading spaces", () => {
+    expect(validateTaskName(" leading")).toBe(false);
+  });
+
+  test("should return false for a task name with consecutive spaces", () => {
+    expect(validateTaskName("consecutive  spaces")).toBe(false);
+  });
+
+  test("should return true for a task name with special characters", () => {
+    expect(validateTaskName("Task-Name | 123")).toBe(true);
   });
 
   test("should return true for a valid task name with alphanumeric characters", () => {
@@ -419,8 +427,16 @@ describe("validateTaskDescription", () => {
     expect(validateTaskDescription("a".repeat(501))).toBe(false);
   });
 
-  test("should return false for a task description with special characters", () => {
-    expect(validateTaskDescription("Task@Description!")).toBe(false);
+  test("should return false for a task description with leading spaces", () => {
+    expect(validateTaskDescription(" leading")).toBe(false);
+  });
+
+  test("should return false for a task description with consecutive spaces", () => {
+    expect(validateTaskDescription("consecutive  spaces")).toBe(false);
+  });
+
+  test("should return true for a task description with special characters", () => {
+    expect(validateTaskDescription("Task@Description!")).toBe(true);
   });
 
   test("should return true for a valid task description with alphanumeric characters", () => {