Titles on Members Page Not Localized

### Describe the bug

See issue title. Professional Members etc is shown in Chinese page at https://beeware.org/zh_CN/community/members/

### Steps to reproduce

Goto https://beeware.org/zh_CN/community/members/

### Expected behavior

Localized member titling

### Screenshots

_No response_

### Environment

Irrelevant

### Logs

_No response_

### Additional context

_No response_