Translate Chapter 8 (Van der Waals interactions) to English

[Copilot]

Translates Chapter 8 "Oddziaływanie van der Waalsa" (Van der Waals interactions) from Polish to English, following the pattern of previous chapter translations (PRs #30-37).

Changes Made

• Chapter title: Translated to "Van der Waals interactions"
• Section 8.1: Translated "Podstawowe własności" (Basic properties) - covering fundamentals of van der Waals interactions, quantum fluctuations, dipole interactions, and classical description
• Section 8.2: Translated "Poprawki do funkcjonału energii" (Energy functional corrections) including:
  • Subsection 8.2.1: D2 and D3 methods (Grimme's approaches with damping functions and dispersion coefficients)
  • Subsection 8.2.2: TS method (Tkatchenko-Scheffler method and self-consistent screening approach)

Technical Details

• All mathematical equations preserved unchanged
• All LaTeX formatting maintained
• All citations and references preserved
• Technical terminology consistent with previous chapter translations
• Translation spans lines 3461-3649 in book/main.tex

Notes

Code review identified two potential mathematical notation issues in equations (lines 3623 and 3634) that were present in the original Polish text and remain unchanged per translation scope.

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[jochym]

@copilot work on current branch, as with the previous chapters.

[Copilot]

@copilot work on current branch, as with the previous chapters.

Chapter 8 (Van der Waals interactions) has been translated from Polish to English in commit 2bafef4. The translation covers:

• Section 8.1: Basic properties
• Section 8.2: Energy functional corrections (D2, D3, and TS methods)

All mathematical equations, references, and LaTeX formatting have been preserved.