Several Open File dialog improvements#185

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Commits on Sep 9, 2025

Added special shift bits from putty4far2l
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Commits on Sep 10, 2025

Revert "Added special shift bits from putty4far2l"
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Commits on Sep 12, 2025

Several Open File dialog fixes:
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Commits on Oct 11, 2025

Commits on Oct 12, 2025

Fix bcc32 build
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Commits on Oct 13, 2025

Fixes https://github.com/magiblot/tvision/issues/194
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