feat: Added a "Clear Canvas " button in the UI

[nitish-002]

Hi @Akhilesh-max , I am Nitish Sharma . I have added a "Clear Canvas" button to the Excalidraw interface. However, the functionality to clear the canvas upon clicking the button has not been implemented yet. This issue is to track the implementation of the functionality for the newly added button.

The below image is the before image:

here the delete button in the top is not visible and there is no way to erase the canvas completely by one click from the UI

for the same problem i have added the feature which can be seen in the after video that follows:

video1774032080.mp4

[nitish-002]

@Akhilesh-max please assign this issue to me

[Akhilesh-max]

@nitish-002

i) Generally, we do not introduce ourselves in the issue description and we should not present the solution/fix in the same description (You can present the fix in the thread below the issue description.).

ii) Where's the "Share" button gone?