As part of the MVP of the parent task, we need to add MediaWiki messages for rarely-changed Codex component strings to core.
Because we may move these messages into Codex itself one day, we'd like to sequester them to their own directory for easy portability.
The messages are:
| name | description | English value |
| --- | --- | --- |
| `cdx-input-chip-aria-description` | Visually-hidden description of a CdxInputChip, describing the available keyboard commands | 'Press Enter to edit or Delete to remove' |
| `cdx-dialog-close-button-label` | Visually-hidden label for the CdxDialog "close" button | 'Close' |
| `cdx-label-optional-flag` | Flag that a field is optional | '(optional)'
| `cdx-message-dismiss-button-label` | Visually-hidden label for the CdxMessage "dismiss" button | 'Close' |
| `cdx-search-input-search-button-label` | Label for the CdxSearchInput "search" button | 'Search' |
| `cdx-table-select-all-label` | Visually-hidden label for the "select all" checkbox | 'Select all rows' |
| `cdx-table-select-row-label` | Visually-hidden label for each row selection checkbox | 'Select row $1 of $2' |
| `cdx-table-sort-caption` | Visually-hidden addition to the table caption describing how sorting works | ', column headers with buttons are sortable.' |
| (more for table pagination ) | | |
| `cdx-typeahead-search-search-results-label` | Visually-hidden label for the search results list | 'Search results' |
---
### Acceptance criteria
- [] Messages are added to core in a single directory
- [] Messages are hooked up to translatewiki