Update destructuring chapter from feedback #3670

Job	Run time
Contrib scripts check	1m 23s
List-Courses	5s
Python scripts black lint check	10s
Labs-Slides	1m 0s
Labs (ubuntu-latest)	42s
Slides (static_analysis_via_compiler)	1m 19s
Slides (gnat_studio)	2m 8s
Slides (gnatdas)	4m 20s
Slides (gnatsas/standard_course.txt)	2m 12s
Slides (gnatsas)	4m 50s
Slides (ada_essentials)	22m 3s
Slides (gnat_project_facility)	2m 57s
Slides (toolchain)	1m 57s
Slides (rust_essentials/comprehensive_course.txt)	1m 51s
Slides (spark_essentials/standard_course.txt)	3m 25s
Slides (advanced_exception_analysis)	1m 45s
Slides (toolchain/gnat_toolchain.txt)	2m 17s
Slides (spark_essentials)	6m 21s
Slides (ada_essentials/advanced.txt)	2m 31s
Slides (gnat_project_facility/standard_course.txt)	1m 53s
Slides (rust_essentials/standard_course.txt)	2m 55s
Slides (gnatdas/standard_course.txt)	2m 35s
Slides (ada_essentials/standard_course.txt)	3m 57s
Slides (rust_essentials)	8m 12s
Slides (misc_tools)	2m 3s
Slides (gnat_studio/course.txt)	1m 53s
	1h 26m 44s

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