* Apply new-tab-command-tab behavior correctly. (regression on 4.0.12)
* Use `GrayText` instead of `ButtonText` as the tabs border color in the "High Contrast" theme, to reduce stresses from too high contrast.
* "Move Tab" => "Move to New Window" in the context menu on the sidebar now moves whole tree always.
* "Move Tab" => "Move to New Window" opens a new window shifted from the source window a little.
* Don't deactivate unrelated options even if `<all_urls>` permission is not granted.
* Fix unexpected reloading of the sidebar panel on tab attaching/detaching.
* Add a new secret option `syncActiveStateToBundledTabs` to suppress expanding of the tree and scrolling to it for group tabs bundled to a pinned tab, when the pinned tab become active.