Remove implicit "start", then clean up callsites (#47313)

Summary:
Pull Request resolved: #47313

We're going to fix up a bunch of designated initializers.  `RCTSurfaceHostingProxyRootView` is particularly problematic because different initializers will do different things even though reading the code it looks like they should be equivalent.  Remove the encapsulated "start" to the provided "surface", and require it to be explicit at the callsite.

## Changelog:

[iOS][Changed] - `RCTSurfaceHostingProxyRootView` no longer has different behavior (whether it calls `start` on the provided *surface*) depending on which initializer is used.  Call `start` yourself on the *surface* instead.

Reviewed By: cipolleschi

Differential Revision: D65214656

fbshipit-source-id: 179d5220d4f866b4452561e1bb6e2051020c8a11

packages/react-native/Libraries/AppDelegate/RCTAppSetupUtils.mm

@@ -53,7 +53,9 @@ void RCTAppSetupPrepareApp(UIApplication *application, BOOL turboModuleEnabled)
     id<RCTSurfaceProtocol> surface = [[RCTFabricSurface alloc] initWithBridge:bridge
                                                                    moduleName:moduleName
                                                             initialProperties:initialProperties];
-    return [[RCTSurfaceHostingProxyRootView alloc] initWithSurface:surface];
+    UIView *rootView = [[RCTSurfaceHostingProxyRootView alloc] initWithSurface:surface];
+    [surface start];
+    return rootView;
   }
   return [[RCTRootView alloc] initWithBridge:bridge moduleName:moduleName initialProperties:initialProperties];
 }

packages/react-native/Libraries/AppDelegate/RCTRootViewFactory.mm

@@ -172,9 +172,8 @@ - (UIView *)viewWithModuleName:(NSString *)moduleName
 
     RCTFabricSurface *surface = [self.reactHost createSurfaceWithModuleName:moduleName initialProperties:initProps];
 
-    RCTSurfaceHostingProxyRootView *surfaceHostingProxyRootView = [[RCTSurfaceHostingProxyRootView alloc]
-        initWithSurface:surface
-        sizeMeasureMode:RCTSurfaceSizeMeasureModeWidthExact | RCTSurfaceSizeMeasureModeHeightExact];
+    RCTSurfaceHostingProxyRootView *surfaceHostingProxyRootView =
+        [[RCTSurfaceHostingProxyRootView alloc] initWithSurface:surface];
 
     surfaceHostingProxyRootView.backgroundColor = [UIColor systemBackgroundColor];
     if (self->_configuration.customizeRootView != nil) {

packages/react-native/React/Base/Surface/SurfaceHostingView/RCTSurfaceHostingProxyRootView.mm

@@ -53,11 +53,8 @@ @implementation RCTSurfaceHostingProxyRootView
 
 - (instancetype)initWithSurface:(id<RCTSurfaceProtocol>)surface
 {
-  if (self = [super initWithSurface:surface
-                    sizeMeasureMode:RCTSurfaceSizeMeasureModeWidthExact | RCTSurfaceSizeMeasureModeHeightExact]) {
-    [surface start];
-  }
-  return self;
+  return [super initWithSurface:surface
+                sizeMeasureMode:RCTSurfaceSizeMeasureModeWidthExact | RCTSurfaceSizeMeasureModeHeightExact];
 }
 
 RCT_NOT_IMPLEMENTED(-(instancetype)initWithFrame : (CGRect)frame)