Makes changes to dropdown-typeahead2 so that a css
class for the button can be passed in. Means it can
be used instead of dropdown-typeahead.

Switches to using dropdown-typeahead2 for series_overrides
directive and for the influxdb, mysql and postgres datasources
as it already contains a fix for this issue.

This commit also fixes the index property which
was set using an incorrectly spelled length property in the
series_overrides directive.

Closes #15621

Azure Monitor docs

* Improve Loki logs render with ANSI colors

* fixup! Improve Loki logs render with ANSI colors

* fixup! Improve Loki logs render with ANSI colors

* fixup! Improve Loki logs render with ANSI colors

grafana/ui 6.0.0-alpha.0 release version bump

panel: defensive coding that fixes #15563

grafana/ui 1.0.0-alpha.0 release - package version bump

Bring back plugins page styles

@grafana/ui publishing scripts

link to what's new in v6.0
add azure monitor and loki to datasource list
change stackdriver icon to a bigger one

fix: Filter out values not supported by Explore yet #15281

Update docs to match current npm scripts

If a plugin incorrectly uses an attribute in the
query-editor-row directive, it should not throw
an exception.

Minor fix/polish to gauge panel and threshold editor