Add a button which toggles the functionalities between select all and un select all

[SainathEbitwar]

Hey Hi @thameera ,

Thanks for this project it really saved my day, but I would like suggest a small enhancement where we should show a toggle button for selecting and unselecting all the request. I have made the changes for it and those are working in my local will raise a PR soon.
attached screenshot for more clarity.

Thanks.
its-sainath

[SainathEbitwar]

Hi @thameera,

Could you please look into this.

Thanks,
Sainath