changed width of logo div
so that it doesn't cover iitr logo div
also changed right padding of navigation bar to 0.
added a dropdown menu to members
1. now on hovering on navbar links, color changes to grey and text
inhertis the color.
2. when hover on the links in dropdown menu, color changes to light
grey, text inherits the color
3. new navbar is only present in index.html
4. removed horizontal line that was there earlier below navbar (to be
added later)
added horizontal line below navbar in index.html
added new navbar in all the files
changed the z-index of sub-menu to 1
updated all the links
slight change in navbar