User module | Update User Details

## User Profile Update
**User Story:**

**As a user**, I want to easily update my profile information in the application. I should be able to initiate the update, make changes, and submit them. The system should validate the changes and let me know if anything isn't correct.

Once I provide correct changes, the system should smoothly update my profile data. If there's any issue during this process, I expect clear communication about the problem.

In the end, I want to be informed whether my profile was updated successfully or not. The goal is to make this process user-friendly and efficient for me.

**Acceptance Criteria:**

### Scenario 1: User initiates profile update.
- **Given** I am logged into the application.
- **When** I navigate to the profile update section.
- **Then** I should see a form to edit my profile information.

### Scenario 2: User makes changes and submits.
- **Given** I am on the profile update page.
- **When** I make changes to my profile information and click the "Submit" button.
- **Then** the system should validate the changes.

### Scenario 3: Validation passes.
- **Given** I have made valid changes.
- **When** I submit the form.
- **Then** my profile data should be updated smoothly.

### Scenario 4: Validation fails.
- **Given** I have made invalid changes.
- **When** I submit the form.
- **Then** the system should provide clear error messages about the incorrect fields.

### Scenario 5: Successful profile update.
- **Given** I have successfully updated my profile information.
- **When** the update process is complete.
- **Then** I should receive a confirmation message that my profile was updated successfully.

### Scenario 6: Unsuccessful profile update.
- **Given** there's an issue during the profile update process.
- **When** the update process fails.
- **Then** I should receive a clear error message explaining the problem.

**DAO:**
- `updateUser()`: This function is responsible for updating user information in the database.

**Service:**
- `updateUserService()`: This service manages the functionality to update user data.

**Service Test:**

### TestUpdateFeature:
- `testUpdateSuccess()`: This test case validates the successful update of user data.
- `testUpdateFail()`: This test case verifies the scenario where user data update fails.

**Estimation:**
Estimated time for completion: 3 hours

**Flow:**
```mermaid
graph TD;

subgraph Start
A[User Logs In]
end;

A -->|Navigates to Profile Update| B[Profile Update Page]
B -->|Makes Changes| C[Submit Changes]
C -->|Validation Successful| D[Profile Data Updated]
C -->|Validation Fails| E[Display Error Messages]
D -->|Success| F[Show Success Message]
E -->|Failure| G[Show Error Messages]

F -->|End| H[End]
G -->|End| H[End]
H -->|User Informed| I[User Informed]

```