[UI] Add a description for All Rules page

[SaharMehrpour]

For "All Rules" page.

• When there is no documented decision, show a message explaining what to do.
• Add a tooltip ( add (i) besides "All Rules" header ) to describe the page.

[RBP98]

Hey! I would like to work on this. Can you assign this to me?

[SaharMehrpour]

Question: Do we want to display a message, when the page is empty?

[SaharMehrpour]

I think it would be good if we add a message saying there is no rules to display.