[flow] Drop experimental prefix for partial ref as prop support

Summary:
React 19 is released. The partial support implementation hasn't changed for a while so let's announce it.

Changelog: [feature] Support for React 19's ref-as-prop model is now available via `react.ref_as_prop=partial_support`, and this is now the default. (To disable it, use `react.ref_as_prop=disabled`.) Under this mode, ref prop in jsx will be treated as a regular prop for function components, but utility types like `React.ElementConfig<...>` still won't include the regular ref prop yet.

Reviewed By: panagosg7

Differential Revision: D66831536

fbshipit-source-id: 7dc00943a8da947276273dd942b7512fd6ac447b

src/commands/config/flowConfig.ml

@@ -261,7 +261,7 @@ module Opts = struct
       node_resolver_root_relative_dirnames = [""];
       pattern_matching_expressions = None;
       react_custom_jsx_typing = false;
-      react_ref_as_prop = Options.ReactRefAsProp.Disabled;
+      react_ref_as_prop = Options.ReactRefAsProp.PartialSupport;
       react_runtime = Options.ReactRuntimeClassic;
       recursion_limit = 10000;
       relay_integration = false;
@@ -1132,6 +1132,7 @@ module Opts = struct
           [
             ("disabled", Options.ReactRefAsProp.Disabled);
             ("experimental.partial_support", Options.ReactRefAsProp.PartialSupport);
+            ("partial_support", Options.ReactRefAsProp.PartialSupport);
           ]
           (fun opts react_ref_as_prop -> Ok { opts with react_ref_as_prop })
       );

tests/component_syntax/.flowconfig

@@ -5,6 +5,7 @@ experimental.react_rule=deepReadOnlyProps
 experimental.react_rule=rulesOfHooks
 all=true
 no_flowlib=false
+react.ref_as_prop=disabled
 
 [lints]
 nested-component=error

tests/component_type/.flowconfig

@@ -2,6 +2,7 @@
 component_syntax=true
 all=true
 no_flowlib=false
+react.ref_as_prop=disabled
 
 [lints]
 internal-type=off

tests/react_ref_as_prop/.flowconfig

@@ -2,4 +2,4 @@
 all=true
 no_flowlib=false
 react.runtime=automatic
-react.ref_as_prop=experimental.partial_support
+react.ref_as_prop=partial_support