Still module | Read Feature

User Story
Users should be able to view their captured still images using their unique user ID. By clicking on the "Still Manager" folder, users can access their stored still images. If there are any still images available, they will be displayed. Otherwise, a message indicating that no stills are currently available will be shown.

### DAO:

- [x] readStillId()

### Service:

- [x] readStill()

### Service Tests:

- [x] testStillReadSuccess()

### Flow

```mermaid
flowchart TD
A[Start]
B([Click The Still Folder])
C[Validate Information]
D{Is There Any Still?}
E[Show The Stills]
F[No Stills Available]
G[Read Successful]
H[End]
A --> B
B --> C
C --> D
D -- Yes --> E
E --> G
D -- No --> F
G --> H
```