Reverted the css of index.scss

- Changed back the css of index.scss to its original state.
- Removed the changes related to the other issue

Signed-off-by: Akhilender Bongirwar <112749383+akhilender-bongirwar@users.noreply.github.com>

docs/_sass/index.scss

@@ -217,7 +217,7 @@ $blue-munsell-3: #4392a4ff;
 // nighthawk-description startups
 
 .nighthawk-description-div {
-  margin: -23rem auto 12rem auto;
+  margin: -23rem auto 3rem auto;
   z-index: 1;
 }
 .description-div {
@@ -366,4 +366,4 @@ $blue-munsell-3: #4392a4ff;
   }
 }
 
-// stewarded by section ends
+// stewarded by section ends