Add middle-button scrolling support - #20469

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Failed to retrieve cspell:cpp/src/ecosystem.txt -- HTTP 404 for https://raw.githubusercontent.com/check-spelling/cspell-dicts/v20241114/dictionaries/cpp/src/ecosystem.txt (check-dictionary-not-found)

Failed to retrieve cspell:cpp/src/compiler-msvc.txt -- HTTP 404 for https://raw.githubusercontent.com/check-spelling/cspell-dicts/v20241114/dictionaries/cpp/src/compiler-msvc.txt (check-dictionary-not-found)

Failed to retrieve cspell:cpp/src/compiler-gcc.txt -- HTTP 404 for https://raw.githubusercontent.com/check-spelling/cspell-dicts/v20241114/dictionaries/cpp/src/compiler-gcc.txt (check-dictionary-not-found)

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