Merge pull request #10233 from backstage/rugvip/filter-layout

catalog: group, rename, and move filter components to catalog-react

.changeset/healthy-lions-sin.md

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+---
+'@backstage/plugin-scaffolder': patch
+---
+
+The `ScaffolderPage` now uses the `CatalogFilterLayout`, which means the filters are put in a drawer on smaller screens.

.changeset/lucky-scissors-play.md

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+---
+'@backstage/plugin-catalog': patch
+---
+
+**DEPRECATION**: The `FilteredEntityLayout` and related components have been moved to `@backstage/plugin-catalog-react` and renamed. The original components are now deprecated and should be replaced as follows:
+
+- `FilteredEntityLayout` -> `CatalogFilterLayout`
+- `FilterContainer` -> `CatalogFilterLayout.Filters`
+- `EntityListContainer` -> `CatalogFilterLayout.Content`

.changeset/nasty-chefs-dream.md

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+---
+'@backstage/plugin-catalog-react': patch
+---
+
+Added `CatalogFilterLayout`, which replaces `FilteredEntityLayout` from `@backstage/plugin-catalog`, as well as `FilterContainer` and `EntityListContainer`. It is used like this:
+
+```tsx
+<CatalogFilterLayout>
+  <CatalogFilterLayout.Filters>
+    {/* filter drawer, for example <EntityTypePicker /> and friends */}
+  </CatalogFilterLayout.Filters>
+  <CatalogFilterLayout.Content>
+    {/* content view, for example a <CatalogTable /> */}
+  </CatalogFilterLayout.Content>
+</CatalogFilterLayout>
+```

.changeset/nice-seals-decide.md

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+---
+'@backstage/plugin-api-docs': patch
+'@backstage/plugin-techdocs': patch
+---
+
+Switched to using `CatalogFilterLayout` from `@backstage/plugin-catalog-react`.