* feat: add support for expanding dashboard visualizations
These changes implement support for expanding a dashboard visualization
into a larger modal dialog.
This is useful if you have a dashboard with lots of small widgets and
want to inspect one of the widgets more closely. In the past, this
would've required you to navigate to the query page to see a larger
version of the visualization. With these changes, visualizations can
be expanded right from the dashboard.
The implementation is simple as it just renders the visualization into
a modal dialog. Other parts of the widget (e.g. parameters) are not
included in this dialog.
* chore(widget-dialog): use query-link widget to render title
This reduces code duplication a bit. The link is made read-only
as navigation doesn't close the modal dialog.
* fix: make ui-select dropdown z-index > modal dialog z-index in dashboard page
Otherwise the dropdown renders behind the modal dialog if filter value
is changed from the modal view of a widget.
* Fix: line chart with category x-axis: when some values missing, wrong hints displayed on hover
* Fix: second Y-axis not displayed when stacking enabled
* Set of dashboard improvements and bug fixes
- set minimal height of widgets to 1 (was 4)
- bug: for some widgets auto-height wasn't calculated properly (sometimess too small, sometimes too large)
- bug: for small widgets, top-right menu was cut to widgets bounds
- bug: with opened top-right menu widgets with auto-height started "dancing"
- bug: at some point auto-height feature was disabling by itself (in fact - it depends on `angular-grindter`s internal processes)
- fix: widget with empty contents had extra 40px of white space (paddings of container)
* Add scrollbars to pivot table widgets
* Fix: 100% CPU loading caused page lags
