5.4.2
fix(tree): change symbol type. close #17946
fix(tree): fix tree unexpected expand (#16548)
refact: make components installable
chore: fix a few typos
ts: let to const. And add eslint rule "prefer-const".
style: fix typo of `RoamPayload`.
refact: put all core modules in the core dir. only do export in lib/echarts
fix(type): optimize types for dts bundling