fix(theme): fix mui v5 paper background color

Signed-off-by: Christoph Jerolimov <[email protected]>

packages/app/package.json

@@ -45,7 +45,7 @@
     "@mui/icons-material": "5.16.7",
     "@mui/material": "5.16.7",
     "@mui/styled-engine": "5.16.6",
-    "@redhat-developer/red-hat-developer-hub-theme": "0.4.0",
+    "@redhat-developer/red-hat-developer-hub-theme": "0.0.0-pr-52-a26104b",
     "@scalprum/core": "0.8.1",
     "@scalprum/react-core": "0.9.3",
     "lodash": "4.17.21",

yarn.lock

@@ -16227,9 +16227,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@redhat-developer/red-hat-developer-hub-theme@npm:0.4.0":
-  version: 0.4.0
-  resolution: "@redhat-developer/red-hat-developer-hub-theme@npm:0.4.0"
+"@redhat-developer/red-hat-developer-hub-theme@npm:0.0.0-pr-52-a26104b":
+  version: 0.0.0-pr-52-a26104b
+  resolution: "@redhat-developer/red-hat-developer-hub-theme@npm:0.0.0-pr-52-a26104b"
   peerDependencies:
     "@backstage/theme": ^0.5.2
     "@emotion/react": ^11.11.1
@@ -16238,7 +16238,7 @@ __metadata:
     "@material-ui/icons": ^4.11.3
     "@mui/icons-material": ^5.14.19
     "@mui/material": ^5.14.20
-  checksum: 8684f8faa2fe87100dba2c19f1e1a306e808cf98bc65da829c3203a325ea6520a93e54c174e25a220ccf8280ecc2750a178a0d18b12f5ba354c7c415e8a9dc7b
+  checksum: 20eda970fab488d2bde9fda9d831aa5f5c04ddac1c8497ff710ac0ad2108532e1abb6725000feecf4512d240bba9b2c42f26bc0d096385abb2dca83b7ba274f5
   languageName: node
   linkType: hard
 
@@ -21685,7 +21685,7 @@ __metadata:
     "@mui/icons-material": 5.16.7
     "@mui/material": 5.16.7
     "@mui/styled-engine": 5.16.6
-    "@redhat-developer/red-hat-developer-hub-theme": 0.4.0
+    "@redhat-developer/red-hat-developer-hub-theme": 0.0.0-pr-52-a26104b
     "@scalprum/core": 0.8.1
     "@scalprum/react-core": 0.9.3
     "@scalprum/react-test-utils": 0.2.2