feat(menu, layout): change menu design, refactor layout

[LEEHONCN]

1. change menu style
2. add title inlineCollapsed props
3. remove default open submenu
4. add Layout.Header.HeaderSection, Layout.Header.HeaderDivider component
5. add menu.Divider component

BREAKING CHANGE: 移除了默认打开submenu, 需要手动设置openkeys

[vercel]

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[codecov]

Codecov Report

Merging #763 (9adeb77) into master (5544047) will increase coverage by 0.10%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #763      +/-   ##
==========================================
+ Coverage   89.83%   89.93%   +0.10%     
==========================================
  Files         150      151       +1     
  Lines        5115     5158      +43     
  Branches     1352     1360       +8     
==========================================
+ Hits         4595     4639      +44     
+ Misses        514      513       -1     
  Partials        6        6              

Impacted Files	Coverage Δ
src/components/layout/layout.tsx	100.00% <ø> (ø)
src/components/menu/MenuTitle.tsx	100.00% <ø> (ø)
src/components/layout/content.tsx	100.00% <100.00%> (ø)
src/components/layout/header.tsx	100.00% <100.00%> (ø)
src/components/layout/sider.tsx	100.00% <100.00%> (ø)
src/components/layout/useSiders.ts	100.00% <100.00%> (ø)
src/components/menu/Divider.tsx	100.00% <100.00%> (ø)
src/components/menu/Menu.tsx	100.00% <100.00%> (ø)
src/components/menu/MenuContext.ts	100.00% <100.00%> (ø)
src/components/menu/MenuItem.tsx	100.00% <100.00%> (+6.66%)	⬆️
... and 6 more

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