fix(map): ensure children have been added to group before calling `resetEventTriggerForRegion`, resolves #14699.

fix(markLine): symbolOffset incorrectly marked as mandatory

Merge 5.1.0 release to master

release: 5.1.0

fix(sankey): make label in the front of rect, recover the change of #14417.

fix: (1) fix treemap upperLabel opacity incorrect. (2) enhance TS type of `getVisual`.

fix(bar): fix bar layout with borderWidth but no borderColor

fix(pie): fix pie display NaN labels  

Fix/geo location

fix(map): fix label layout may not update in map

style: remove unused imports. fix imports from entry

Prepare to release 5.1.0

fix(label): fix labels are not on the top bug.

fix(visualMap): use itemSymbol as default symbol type and fix #5719

feat(legend): make default legend more intuitive

fix(label): fix map label won't update its position when labelLayout is used

feature: support geoSVG