Add link "View more" in each dashboard widget

Users use the dashboard a lot.

We could add "more information/View more" links to the widgets that lead to the full reports. This way the reports might be used a bit more frequently.

For example, the Keyword widget could have a link "View Search Engines & Keywords report" (reusing the submenu string).

Start by locating the dashboard widget definitions and the existing submenu strings for the corresponding full reports. Review how the Keyword widget links to its report, then determine the matching destination and wording for each widget; done means every applicable widget has a working “View more” link to its full report.

Written by the indexing model from the issue text.