fix: upgrade @giphy/react-components 1.6.0 -> 5.9.4

1.6.0 did not export SearchContextManager/SearchContext/SearchBar,
causing React error #130 (element type undefined) when opening GifPicker.
5.9.4 uses @emotion (not styled-components), supports React 16-18, and
exports all required components. Downgrade @giphy/js-fetch-api to 4.2.2
to match the peer dep range.

package.json

@@ -67,9 +67,9 @@
     "@atlaskit/pragmatic-drag-and-drop-auto-scroll": "2.1.5",
     "@atlaskit/pragmatic-drag-and-drop-hitbox": "1.1.0",
     "@fontsource-variable/inter": "5.2.8",
-    "@giphy/js-fetch-api": "5.8.0",
+    "@giphy/js-fetch-api": "4.2.2",
     "@giphy/js-types": "4.3.0",
-    "@giphy/react-components": "1.6.0",
+    "@giphy/react-components": "5.9.4",
     "@sentry/react": "10.53.1",
     "@tanstack/react-query": "5.100.11",
     "@tanstack/react-query-devtools": "5.100.11",