Adjust api report & changeset

Signed-off-by: Philipp Hugenroth <philipph@spotify.com>

.changeset/tender-dingos-burn.md

@@ -1,6 +1,5 @@
 ---
 '@backstage/core-components': patch
-'@backstage/theme': patch
 ---
 
 Change the default hover experience for the sidebar to be not jumpy & add visual separation between sidebar & Entity Page tabs for dark mode.

packages/core-components/api-report.md

@@ -7,7 +7,6 @@
 
 import { ApiRef } from '@backstage/core-plugin-api';
 import { BackstageIdentityApi } from '@backstage/core-plugin-api';
-import { BackstageTheme } from '@backstage/theme';
 import { Breadcrumbs as Breadcrumbs_2 } from '@material-ui/core';
 import { ButtonProps } from '@material-ui/core';
 import { ButtonTypeMap } from '@material-ui/core';
@@ -1605,13 +1604,6 @@ export const SidebarDivider: React_2.ComponentType<
   > &
     StyledComponentProps<'root'> & {
       className?: string | undefined;
-    } & Pick<
-      {
-        theme: BackstageTheme;
-      },
-      never
-    > & {
-      theme?: BackstageTheme | undefined;
     }
 >;