core&ui: implement domain leave and kick

packages/hydrooj/locales/zh.yaml

@@ -792,7 +792,6 @@ The role to assign when user joining the domain.: 用户加入此域时分配的
 The uploaded file is too long.: 上传的文件太长。
 The user is already a member of the domain.: 该用户已是域的成员。
 The user is too lazy to leave something here...: 该用户太懒，这里啥也没写 (´・ω・｀)
-Their account will not be deleted and they will be with the default role.: 他们的账号不会被删除，并且之后将以 default 角色访问。
 theme: 主题
 There are no contests...: 没有比赛…
 There is no homework so far ╰(*°▽°*)╯: 目前还没有作业 ╰(*°▽°*)╯
@@ -934,6 +933,7 @@ You cannot visit this domain.: 您不能访问此域。
 You don't have the required permission ({0}) in this domain.: 您在该域中无相应权限 ({0})。
 You don't have the required privilege.: 您没有相应的特权。
 You don't own any domain and don't have privilege to create domain.: 您不拥有任何域也没有创建域的特权。
+You have been kicked from domain {0} by {1}.: 您已被 {1} 从域 {0} 中移除。
 You have not submitted any solutions for this problem: 您在该题下没有递交过任何解答
 You have permission to create problems for this domain.: 您有权限为此域创建题目。
 You have uncompleted domain creation operation. You can click "Continue" to finish the creation.: 您有未完成的创建域操作。您可以点击“继续”来完成创建。