## Summary
**What** — What changes are introduced in this PR?
This PR standardizes heading levels across dashboard components to maintain proper semantic HTML hierarchy.
**Why** — Why are these changes relevant or necessary?
*Please provide answer here*
**How** — How have these changes been implemented?
- Added optional `headingLevel` prop `"h1" | "h2" | "h3"` to `DataTable` component with default value of `"h1"`
- Modified `Heading` component usage to explicitly specify the appropriate level based on context
**Testing** — How have these changes been tested, or how can the reviewer test the feature?
*Please provide answer here*
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## Checklist
Please ensure the following before requesting a review:
- [x] I have added a **changeset** for this PR
- Every non-breaking change should be marked as a **patch**
- To add a changeset, run `yarn changeset` and follow the prompts
- [ ] The changes are covered by relevant **tests**
- [x] I have verified the code works as intended locally
- [ ] I have linked the related issue(s) if applicable
**What**
This PR adds core DataTable enhancements to support view configurations in the admin dashboard. This is part of a set of stacked PRs to add the feature to Medusa.
- Puts handlers in place to update the visible columns in a table and the order in which they appear.
- Adds a ViewPills component for displaying and switching between saved view configurations
- Integrated view configuration hooks (useViewConfigurations) with the DataTable
Note: Column drag-and-drop reordering and the column visibility UI controls are not included in this PR as they require additional UI library updates - which will come in the next PR.
Example of what this looks like with the feature flag turned on - note the view pills with "default" in the top. This will expand when the data table behavior adds configuration.
<img width="2492" height="758" alt="CleanShot 2025-08-13 at 2 31 35@2x" src="https://github.com/user-attachments/assets/ee770f1c-dae1-49da-b255-1a6d615789de" />
**What**
- Uses derived state in DataTable, to prevent the state in the URL and component from going out of sync.
- Introduces a way for RouteModals to restore URL params on close.
Resolves CMRC-936
**What**
- Adds opinionated DataTable block to `@medusajs/ui`
- Adds new DataTable to `@medusajs/dashboard` that uses the above mentioned block as the primitive.
The PR also replaces the table on /customer-groups and the variants table on /products/:id with the new DataTable, to provide an example of it's usage. The previous DataTable component has been renamed to `_DataTable` and has been deprecated.
**Note**
This PR has a lot of LOC. 5,346 of these changes are the fr.json file, which wasn't formatted correctly before. When adding the new translations needed for this PR the file was formatted which caused each line to change to have the proper indentation.
Resolves CMRC-333
