Update Theme Kit

Author: renovate[bot]

package.json

@@ -26,9 +26,9 @@
     "@prezly/content-renderer-react-js": "0.34.1",
     "@prezly/sdk": "^18.3.0",
     "@prezly/story-content-format": "0.64.0",
-    "@prezly/theme-kit-core": "7.2.0",
-    "@prezly/theme-kit-intl": "7.2.0",
-    "@prezly/theme-kit-nextjs": "7.2.0",
+    "@prezly/theme-kit-core": "7.7.6",
+    "@prezly/theme-kit-intl": "7.7.3",
+    "@prezly/theme-kit-nextjs": "7.7.6",
     "@prezly/uploadcare": "2.6.0",
     "@prezly/uploadcare-image": "0.3.2",
     "@react-hookz/web": "14.7.1",