Fix #5294 构建不包含 Microsoft OAuth App 密钥时，微软登录对话框显示为空

[CiiLu]

No description provided.

[Copilot]

Pull request overview

Fixes #5294 where the Microsoft login details area could render empty when the build does not include a Microsoft OAuth App client id.

Changes:

• Adds the Microsoft details pane to the container before the “missing client id” early-return, so the warning UI is visible.
• Disables the “Accept/Login” button when the Microsoft OAuth client id is missing, and resets button disabled state when swapping panes.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

initDetailsPane() no longer adds detailsPane to detailsContainer for non-Microsoft factories. The only remaining detailsContainer.getChildren().add(detailsPane) call is inside the Microsoft branch, so selecting any other login method will leave the details area empty.

Suggested fix: re-add detailsPane to detailsContainer in the else branch (after creating/binding AccountDetailsInputPane), or restore a single add-at-end with a guard to avoid double-adding while still handling the early-return case for missing Microsoft clientId.

Suggested change

	}
	}
	if (detailsPane != null && !detailsContainer.getChildren().contains(detailsPane)) {
	detailsContainer.getChildren().add(detailsPane);
	}