fix: #5343 陶瓦联机界面账号快速切换列表右侧滚动条错位以及列表莫名抽搐

[CiiLu]

fixes #5343

[Glavo]

/gemini review

[gemini-code-assist]

Code Review

This pull request updates the AccountListPopupMenu to reset the vertical scroll position of the account list whenever the list is invalidated. A review comment correctly identified that using Double.MIN_VALUE to reset the scroll position is semantically incorrect, as it represents the smallest positive non-zero value rather than zero, and suggested using 0.0 for better clarity and correctness.

[gemini-code-assist]

Using Double.MIN_VALUE to reset the scroll position is semantically incorrect. In Java, Double.MIN_VALUE is the smallest positive non-zero value ($4.9 \times 10^{-324}$), not the minimum possible value (which would be -Double.MAX_VALUE). For a ScrollPane's vvalue, the valid range is typically 0.0 to 1.0. While Double.MIN_VALUE is effectively 0.0 due to precision, it is clearer and more idiomatic to use 0.0 or box.getVmin().

Suggested change

	Platform.runLater(() -> box.setVvalue(Double.MIN_VALUE));
	Platform.runLater(() -> box.setVvalue(0.0));