Merge pull request highcharts#23922 from highcharts/grid/v2.1.0

--- Grid v2.1.0 ---

Merge pull request highcharts#23778 from highcharts/grid/v2.0.1

--- Grid v2.0.1 ---

Merge pull request highcharts#23750 from highcharts/grid/v2.0.0

--- Grid v2.0.0 ---

Merge pull request highcharts#23751 from highcharts/dash/4.0.0

--- Dashboards v4.0.0 ---

Merge pull request highcharts#23536 from highcharts/grid/v1.4.0

--- Grid v1.4.0 ---

Merge pull request highcharts#23535 from highcharts/dash/3.6.0

--- Dashboards v3.6.0 ---

Merge pull request highcharts#23323 from highcharts/grid/1.3.0

--- Grid v1.3.0 ---

Merge pull request highcharts#23322 from highcharts/dash/3.5.0

--- Dashboards v3.5.0 ---

Merge pull request highcharts#23261 from highcharts/grid/1.2.0

grid/1.2.0