fix: [#2745] Fix current eslint warnings - adaptive-expressions library (1/2)

[ceciliaavila]

Addresses #2745
#minor

Description

This PR fixes the ESLint and JSDoc issues in the adaptive-expressions library.

Note: we excluded the @typescript-eslint/no-explicit-any and @typescript-eslint/explicit-module-boundary-types to tackle those issues as a separated task as they require deeper analysis and testing.

Specific Changes

• Applied the eslint auto-fix with yarn lint --fix (quotes, spacing, replaced var with let)
• Added missing JSDoc documentation in methods.
• Removed unused imports and variables.
• Disabled @typescript-eslint/ban-types rule to review the use of object along with the any types.
• Disabled prefer-const rule in builtinFunctions/rand.ts as the variables can't be replaced with const.
• Disabled security/detect-non-literal-regexp rule as the variables are needed to create the regex dynamically.
• Moved variables with requires to the import section.

Testing

This image shows the tests passing after the changes.

[coveralls]

Pull Request Test Coverage Report for Build 1775098272

• 66 of 66 (100.0%) changed or added relevant lines in 20 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.4%) to 84.546%

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Totals
Change from base Build 1757731723:	0.4%
Covered Lines:	19668
Relevant Lines:	22036

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💛 - Coveralls