pgAdmin 4 commit: Fixed couple of issues for the dashboard.

Fixed couple of issues for the dashboard.
- Filter for the grids were showing on the server level dashboard.
  It was regression of the commit-id: f7e43d5e5
- Mark 'is_server_dashboard', and 'is_database_dashboard' to false, when
  the node has its own dashboard URL defined.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=c4267f0878a95143a3ec271e1d2adee5596b1985

Modified Files
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web/pgadmin/dashboard/static/js/dashboard.js | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)