split: scrollbox-tabbar.org into scrollbox.org, tabbar.org, container-package.org

- Create org/scrollbox.org (tangles scrollbox.lisp)
- Create org/tabbar.org (tangles tabbar.lisp)
- Create org/container-package.org (tangles container-package.lisp)
- Disable :tangle in old scrollbox-tabbar.org (kept for prose docs)
- Fix missing paren in render method (was depth=1 at EOF)
- All 483 tests pass, 14 suites, 100%

org/container-package.org

@@ -0,0 +1,26 @@
+#+TITLE: Container Package
+#+STARTUP: content
+#+FILETAGS: :cl-tty:container:
+
+* Overview
+
+The ~cl-tty.container~ package defines the container component types:
+ScrollBox and TabBar. It uses ~cl-tty.backend~, ~cl-tty.box~,
+~cl-tty.layout~, and ~cl-tty.input~.
+
+* Implementation
+
+#+BEGIN_SRC lisp :tangle ../src/components/container-package.lisp
+(defpackage :cl-tty.container
+  (:use :cl :cl-tty.backend :cl-tty.box :cl-tty.layout :cl-tty.input)
+  (:export
+   #:scroll-box #:make-scroll-box
+   #:scroll-box-scroll-y #:scroll-box-scroll-x
+   #:scroll-box-children #:scroll-by
+   #:sticky-scroll-p
+   #:clamp-scroll
+   #:tab-bar #:make-tab-bar
+   #:tab-bar-active #:tab-bar-tabs
+   #:tab-bar-add #:tab-bar-next #:tab-bar-prev
+   #:tab-bar-select #:tab-bar-handle-key))
+#+END_SRC