src/vs/workbench/contrib/terminal/browser/terminalEditor.ts/TerminalEditor/focusFindWidget
class TerminalEditor:	focusFindWidget() {
		if (this._parentElement && !this._parentElement?.querySelector(findWidgetSelector)) {
			this._parentElement.querySelector(xtermSelector)!.appendChild(this._findWidget.getDomNode());
		}
		this._findWidgetVisible.set(true);
		const activeInstance = this._terminalEditorService.activeInstance;
		if (activeInstance && activeInstance.hasSelection() && activeInstance.selection!.indexOf('\n') === -1) {
			this._findWidget.reveal(activeInstance.selection);
		} else {
			this._findWidget.reveal();
		}
	}