* fix(mobile): build the Source Control action sheet from desktop's menu rows
Adds Force Push and desktop's order, enable rules and hints.
* fix(mobile): rebase from desktop's effective base and keep the Force Push warning in the action sheet
* fix(mobile): keep the rebase row's base when the branch compare fails
* fix(mobile): keep upstream compares working when the default base lookup fails
* fix(mobile): keep the rebase target apart from the branch compare so failed or unsupported compares keep it
* fix(mobile): leave force pushes to desktop when the linked review has its own push target
* refactor(mobile): rebase onto the shown base and share the force-push block with the primary action
