Opcode Search Tool window is not visible when minimized (Win 10)

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reported here: https://gtaforums.com/topic/211077-rel-sanny-builder/page/24/?tab=comments#comment-1071279250

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Not sure if can I do something with OST window disappearing on minimize but I added the code that brings it back when you run the tool via the menu or hotkey.

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/cc @XMDS