update coding intro highlighter as well as fix two insights using mul…

[Stefan-Stojanovic]

…tiple syntaxes in the same code

[enki-hq]

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[enki-hq]

Insight previews:

• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-conditions/chaining-conditions.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-conditions/comparison-operators.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-conditions/conditions-intro.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-conditions/logical-operators.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-functions/first-function.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-functions/robot-assemble-the-sandwich.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-functions/robot-food-time.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-functions/robot-grill-me-a-sandwich.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/coding-intro-functions/robot-im-hungry.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/collections/accessing-dictionary-elements.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/collections/accessing-list-items.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/collections/coding-intro-dictionaries.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/collections/coding-intro-lists.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/collections/collections-discussion-insight.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/loops/ci-for-loops.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/loops/do-while.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/loops/while-do.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/variables-and-data/lets-use-a-variable.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/variables-and-data/numbers.md
• [ ] enkidevs/curriculum/coding-intro/coding-intro-core/variables-and-data/text.md