Added Tailwind CSS to atest-UI step1) of issue #717 (#719)

* Install and added Tailwind CSS changed App.vue UI remains almost same

* Update App.vue

reverted changes because it is complex to covert UI same to same in Tailwind

Signed-off-by: Aditya Chincholkar <[email protected]>

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Signed-off-by: Aditya Chincholkar <[email protected]>

Author: Aditya-132