fix: fixed bug with redirect after new dashboard saved, related to buggy angularjs location path/url and base href, fixes #10817

fix: changed dashboard title length to match slug length, will fix mysql index size issue, fixes #10779

Fixes #10776

Missed adding to previous commit. Ref #10722

The first item in the dashlist has a margin that messes up
the height calculation for the scroll bar when the Show headings
option is not selected. This fix adds a margin-top set to 0 for
the 1st item in the list in this case. This prevents a scrollbar
being shown incorrectly. Fixes #10772

Once the vertical scrollbar comes to its end position, it should
allow the page scroll bar to start scrolling.