fix[devtools/tree/element]: onClick -> onMouseDown to handle first click correctly (#28486)

There is a weird behaviour in all shells of RDT: when user opens
`Components` tab and scrolls down a tree (without any prior click or
focus event), and then clicks on some element, the `click` event will
not be fired. Because `click` event hasn't been fired, the `focus` event
is fired for the whole list and we pre-select the first (root) element
in the tree:

https://github.com/facebook/react/blob/034130c02ffb47b0026059b57d17e9b080976ff3/packages/react-devtools-shared/src/devtools/views/Components/Tree.js#L217-L226

Check the demo (before) what is happening. I don't know exactly why
`click` event is not fired there, but it only happens:
1. For elements, which were not previously rendered (for virtualization
purposes).
2. When HTML-element (div), which represents the container for the tree
was not focused previously.

Unlike the `click` event, the `mousedown` event is fired consistently.

### Before

https://github.com/facebook/react/assets/28902667/9f3ad75d-55d0-4c99-b2d0-ead63a120ea0

### After

https://github.com/facebook/react/assets/28902667/e34816be-644c-444c-8e32-562a79494e44

Tested that it works in all shells, including the select / deselect
features (with `metaKey` param in event).

DiffTrain build for commit facebook/react@aa4eae6.

Author: hoxyq

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js

@@ -25733,7 +25733,7 @@ if (__DEV__) {
       return root;
     }
 
-    var ReactVersion = "18.3.0-canary-0ae2b1341-20240304";
+    var ReactVersion = "18.3.0-canary-aa4eae6b9-20240305";
 
     // Might add PROFILE later.
 

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js

@@ -9173,7 +9173,7 @@ var devToolsConfig$jscomp$inline_1014 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-0ae2b1341-20240304",
+  version: "18.3.0-canary-aa4eae6b9-20240305",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1195 = {
@@ -9204,7 +9204,7 @@ var internals$jscomp$inline_1195 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-0ae2b1341-20240304"
+  reconcilerVersion: "18.3.0-canary-aa4eae6b9-20240305"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1196 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js

@@ -9601,7 +9601,7 @@ var devToolsConfig$jscomp$inline_1056 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-0ae2b1341-20240304",
+  version: "18.3.0-canary-aa4eae6b9-20240305",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1236 = {
@@ -9632,7 +9632,7 @@ var internals$jscomp$inline_1236 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-0ae2b1341-20240304"
+  reconcilerVersion: "18.3.0-canary-aa4eae6b9-20240305"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1237 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js

@@ -26,7 +26,7 @@ if (__DEV__) {
     }
     var dynamicFlags = require("ReactNativeInternalFeatureFlags");
 
-    var ReactVersion = "18.3.0-canary-0ae2b1341-20240304";
+    var ReactVersion = "18.3.0-canary-aa4eae6b9-20240305";
 
     // ATTENTION
     // When adding new symbols to this file,

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js

@@ -598,4 +598,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-0ae2b1341-20240304";
+exports.version = "18.3.0-canary-aa4eae6b9-20240305";

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js

@@ -594,7 +594,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-0ae2b1341-20240304";
+exports.version = "18.3.0-canary-aa4eae6b9-20240305";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION

@@ -1 +1 @@
-0ae2b13412e0e4cf10a799ec645035213834556c
+aa4eae6b99a6081afabf180d02fa0a8b0cb1b3ab