* refactor(ssh): Remove terminal copy button and streamline clipboard functionality
Update dependency versions and remove the copy button from the terminal page, integrating clipboard functionality into the terminal controller.
* refactor(ssh): Optimize clipboard paste functionality implementation
Convert the _OnTerminalPaste method to an asynchronous implementation and remove duplicate _paste methods.
* refactor(ssh): Rename clipboard operation function and add new functionality
Renamed _onTerminalPaste to _onClipboardAction and expanded its functionality
Now supports copying selected text to the clipboard and performing paste operations when no text is selected
* fix: Fixed an issue where clipboard operations did not wait for asynchronous completion.
* fix(ssh): Fixed terminal paste operation return logic
Prevented redundant _onTerminalPaste calls after terminal paste operations
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