Fixes #545 text color of "about us" option and "news" option

[therealharshit]

Fixes #545
This is how it look like

@quozl @pikurasa please review.

[quozl]

Thanks. Reviewed.

• does not match the Bootstrap example for the version in use, in that the immediately surrounding element is a ul with class dropdown-menu, instead of a div with class dropdown-menu.

Can you explain why you have chosen ul?

Reference: https://getbootstrap.com/docs/4.0/components/navbar/

[therealharshit]

Thanks. Reviewed.

• does not match the Bootstrap example for the version in use, in that the immediately surrounding element is a ul with class dropdown-menu, instead of a div with class dropdown-menu.

Can you explain why you have chosen ul?

Reference: https://getbootstrap.com/docs/4.0/components/navbar/

@quozl I haven't used <ul> intentionally I just don't want to make extra changes to the code in order to fix this issue.
I have refactored the code and everything is working the way it should, please review.

[quozl]

Thanks. Reviewed. Looked at history; was this problem introduced by 7088c6d? Updated issue.

[therealharshit]

Thanks. Reviewed. Looked at history; was this problem introduced by 7088c6d? Updated issue.

@quozl No it wasn't that commit aims to resolve the responsiveness of the navbar.
You can see in that commit the dropdown-menu tags are already <li> and <ul>,
And the code which I added for navbar of mobile devices is perfect.

[quozl]

Thanks. I've dug deeper, the practice was in the original GSoC 2017 commit 725368d, with Bootstrap 3.3.7, for which the documentation is not easily available, but in tag v3.3.7 file docs/examples/navbar/index.html the practice is clearly present.

Therefore our upgrade to Bootstrap 4.0.0 in 99eabc0 may have been incomplete.

[Ajaykumar724]

Fixes #545
This is how it look like

@quozl @pikurasa please review.

This is OK
But navbar text color blue will very expressive

[therealharshit]

@quozl Is the review process completed? or anything is left to be fixed.

[quozl]

Thanks for your patience. Delay was due to contributions to the issue by others who wanted to fix the problem, but in the end didn't want the problem fixed enough to help us fix it. I sought consensus but there was no useful response within a reasonable time.