in this app statistics tab programmer tab and financial tab are not working so make it functional

on Statistics, Programmer, Financial currenlty its showng nothing add al the advance feature on this

now on this add more advance feature and tell me what we added

add all the Calculus related things in calculator

on gst, unit conversion, trigonometry. metrix output Display sceen is coming down only basic and Scientific calculator output is coming correctly over the screen or lets say display.

still black background is there and font color should be dark black

1. Change the background to white and set the font color to black.

give the name Shivaam Shukla Calculator

now add advance featue in calculator so that i order calculate gst, lenght, mm, cm, tan cos inverer transpose + more becaue easy

initial commit