[Improve]Add active style for active menu row

[ryomahan]

use redux and react-router-dom to modify MainMenu.js so that menu row has active style, example:

[ryomahan]

@atompie If this is in your plan, I can submit a PR, otherwise just close it.

[atompie]

@ryomahan please make a PR I will take a look at this. What I see on the animation that it flickers a lot. Don't know why is that.

[ryomahan]

@atompie I submit it on #252

[ryomahan]

The git flickers because the mouse is not recorded.