feat: add i18n support for team management UI and role table header (#3702)

# Description of Changes

- Replaced hardcoded strings in `team-details.html` and `teams.html`
with internationalized message tags (e.g., `team.members`, `team.role`,
etc.)
- Introduced new message keys for team management across multiple
`messages_*.properties` files
- Added `text-overflow` styling to a shared CSS file
(`modern-tables.css`) for reuse across admin pages
- Removed the unused `adminUserSettings.roles` translation key and
replaced it with the singular `adminUserSettings.role` where necessary

These changes improve internationalization coverage in the team
management views and prevent layout issues in tight table columns
through shared styling.

@Frooodle merge after #3701

---

## Checklist

### General

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [x] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

stirling-pdf/src/main/resources/messages_zh_CN.properties

@@ -212,6 +212,7 @@ color=颜色
 sponsor=赞助
 info=信息
 pro=专业版
+proFeatures=Pro Features
 page=页面
 pages=页码
 loading=加载中...
@@ -359,7 +360,6 @@ adminUserSettings.deleteUser=删除用户
 adminUserSettings.confirmDeleteUser=确认删除该用户？
 adminUserSettings.confirmChangeUserStatus=是否应禁用/启用该用户？
 adminUserSettings.usernameInfo=用户名只能包含字母、数字和以下特殊字符@._+-，或者必须是有效的电子邮件地址。
-adminUserSettings.roles=角色
 adminUserSettings.role=角色
 adminUserSettings.actions=操作
 adminUserSettings.apiUser=受限制的 API 用户
@@ -389,16 +389,17 @@ adminUserSettings.teamName=团队名称
 adminUserSettings.teamExists=该团队已存在
 adminUserSettings.teamCreated=团队成功创建
 adminUserSettings.teamChanged=用户所属团队已更新
+adminUserSettings.teamHidden=Hidden
 adminUserSettings.totalMembers=成员总数
 adminUserSettings.confirmDeleteTeam=您确定要删除此团队吗？
 
-teamCreated=团队成功创建
-teamExists=该名称的团队已存在
-teamNameExists=已有其他团队使用该名称
-teamNotFound=未找到该团队
-teamDeleted=团队已删除
-teamHasUsers=无法删除有成员的团队
-teamRenamed=团队重命名成功
+teamCreated=Team created successfully
+teamExists=A team with that name already exists
+teamNameExists=Another team with that name already exists
+teamNotFound=Team not found
+teamDeleted=Team deleted
+teamHasUsers=Cannot delete a team with users assigned
+teamRenamed=Team renamed successfully
 
 # Team user management
 team.addUser=添加用户到团队
@@ -410,6 +411,16 @@ team.back=返回团队列表
 team.internal=内部团队
 team.internalTeamNotAccessible=内部团队为系统预设，无法访问
 team.cannotMoveInternalUsers=内部团队中的用户无法转移至其他团队
+team.hidden=Hidden
+team.name=Team Name
+team.totalMembers=Total Members
+team.members=Members
+team.username=Username
+team.role=Role
+team.status=Status
+team.enabled=Enabled
+team.disabled=Disabled
+team.noMembers=This team has no members yet.
 
 
 
@@ -1702,5 +1713,3 @@ editTableOfContents.desc.1=此工具可用于在 PDF 文档中添加或编辑目
 editTableOfContents.desc.2=您可以通过为父书签添加子书签来构建层级结构
 editTableOfContents.desc.3=每个书签需填写标题和目标页码
 editTableOfContents.submit=应用目录
-
-