Migrate Stacktorm Plugin MUI to BUI

[AmbrishRamachandiran]

Migrate Stacktorm Plugin MUI to BUI

[backstage-goalie]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
@backstage-community/plugin-stackstorm	workspaces/stackstorm/plugins/stackstorm	patch	v0.20.0

[Copilot]

Pull request overview

Migrates the Stackstorm plugin workspace UI from Material-UI (MUI v4) to Backstage UI (BUI), replacing component usage and styling and updating dependencies accordingly.

Changes:

• Replaced MUI components/icons with @backstage/ui components and @remixicon/react icons.
• Converted MUI makeStyles/withStyles usage to CSS modules and semantic HTML where appropriate.
• Updated workspace dependencies/lockfile and added a changeset for the plugin.

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
workspaces/stackstorm/yarn.lock	Removes MUI deps; adds @backstage/ui and @remixicon/react resolutions.
workspaces/stackstorm/plugins/stackstorm/src/components/StackstormHome/StackstormHome.tsx	Replaces MUI IconButton/LibraryBooks with BUI ButtonIcon + Remix icon.
workspaces/stackstorm/plugins/stackstorm/src/components/ExecutionsTable/ExecutionPanel.tsx	Replaces MUI Card/Table/Typography with BUI Card/Button/Text and CSS-module-styled HTML table.
workspaces/stackstorm/plugins/stackstorm/src/components/ExecutionsTable/ExecutionPanel.module.css	New CSS module for ExecutionPanel styling.
workspaces/stackstorm/plugins/stackstorm/src/components/ActionsList/ActionsList.tsx	Replaces MUI list/collapse UI with HTML lists/buttons + BUI Text and CSS modules.
workspaces/stackstorm/plugins/stackstorm/src/components/ActionsList/ActionsList.module.css	New CSS module for ActionsList styling.
workspaces/stackstorm/plugins/stackstorm/package.json	Swaps MUI deps for @backstage/ui and @remixicon/react.
workspaces/stackstorm/.eslintrc.js	Adds workspace override for react/forbid-elements.
workspaces/stackstorm/.changeset/witty-eels-kneel.md	Adds a patch changeset documenting the migration.

[AmbrishRamachandiran]

@backstage/community-plugins-maintainers @hopehadfield please review

[awanlin]

Hi @AmbrishRamachandiran, again as an Org member there's a high bar for your work. You've once again blown away the PR template. This helps both you and the reviewer. There's a specific ask for screenshots for UI changes which this PR is making. That would make reviewing this so much easier. Also, you keep pinging people when that happens automatically so we get 2 notifications. This has the opposite effect, it's more likely to disengage people then to get them to actually review your PR. Please keep this feedback in mind for future contributions. 🙏