T07b navigation places: nav item and group, navigation menu, back and forward history, table of contents with anchors, go to line; measuring canvases pinned to their parent

tasks/ch01-10.md

@@ -290,13 +290,13 @@
 
 ## T07b Navigation · Places
 
-- [ ] Sidebar Navigation / NavItem / NavGroup
-- [ ] NavigationMenu
-- [ ] ActivityBar Item → `shell::ActivityBar`
-- [ ] BackForwardNavigation
-- [ ] History Navigation → `navigation::BackForwardNavigation`
-- [ ] Anchor / TableOfContents
-- [ ] JumpTo / GoToLine
+- [x] Sidebar Navigation / NavItem / NavGroup → `navigation::NavItem`, `navigation::NavGroup`
+- [x] NavigationMenu → `navigation::NavigationMenu`
+- [x] ActivityBar Item → `shell::ActivityBar`
+- [x] BackForwardNavigation → `navigation::BackForwardNavigation`
+- [x] History Navigation → `navigation::BackForwardNavigation`
+- [x] Anchor / TableOfContents → `navigation::Anchor`, `navigation::TableOfContents`
+- [x] JumpTo / GoToLine → `navigation::GoToLine`
 
 ## T07c Navigation · Palettes & tour