Enable enableFilterEmptyStringAttributesDOM everywhere (#28125)

## Summary

Stacked on [#28124](#28124) ([Diff
against
#28124](eps1lon:fix/anchor-href-empty...eps1lon:feat/enableFilterEmptyStringAttributesDOM-canary))

Enables `enableFilterEmptyStringAttributesDOM` everywhere. I don't think
this needs to be enabled behind `__VARIANT__` for RN since this flag is
only used in DOM.

## How did you test this change?

- CI

Author: eps1lon

packages/shared/forks/ReactFeatureFlags.native-fb.js

@@ -64,7 +64,7 @@ export const enableUseEffectEventHook = false;
 export const enableClientRenderFallbackOnTextMismatch = true;
 export const enableComponentStackLocations = false;
 export const enableLegacyFBSupport = false;
-export const enableFilterEmptyStringAttributesDOM = false;
+export const enableFilterEmptyStringAttributesDOM = true;
 export const enableGetInspectorDataForInstanceInProduction = true;
 
 export const enableRetryLaneExpiration = false;

packages/shared/forks/ReactFeatureFlags.native-oss.js

@@ -47,7 +47,7 @@ export const enableUseEffectEventHook = false;
 export const enableClientRenderFallbackOnTextMismatch = true;
 export const enableComponentStackLocations = false;
 export const enableLegacyFBSupport = false;
-export const enableFilterEmptyStringAttributesDOM = false;
+export const enableFilterEmptyStringAttributesDOM = true;
 export const enableGetInspectorDataForInstanceInProduction = false;
 
 export const enableRetryLaneExpiration = false;

packages/shared/forks/ReactFeatureFlags.test-renderer.js

@@ -47,7 +47,7 @@ export const enableUseEffectEventHook = false;
 export const enableClientRenderFallbackOnTextMismatch = true;
 export const enableComponentStackLocations = true;
 export const enableLegacyFBSupport = false;
-export const enableFilterEmptyStringAttributesDOM = false;
+export const enableFilterEmptyStringAttributesDOM = true;
 export const enableGetInspectorDataForInstanceInProduction = false;
 
 export const enableRetryLaneExpiration = false;

packages/shared/forks/ReactFeatureFlags.test-renderer.native.js

@@ -41,7 +41,7 @@ export const disableTextareaChildren = false;
 export const disableModulePatternComponents = false;
 export const enableComponentStackLocations = false;
 export const enableLegacyFBSupport = false;
-export const enableFilterEmptyStringAttributesDOM = false;
+export const enableFilterEmptyStringAttributesDOM = true;
 export const enableGetInspectorDataForInstanceInProduction = false;
 export const enableSuspenseAvoidThisFallback = false;
 export const enableSuspenseAvoidThisFallbackFizz = false;