refactor: resolve browser via env variables based on build rather than user agent (#27179)

Fixes #26911,
#26860.

Currently, we are parsing user agent string to determine which browser
is running the extension. This doesn't work well with custom user
agents, and sometimes when user turns on mobile dev mode in Firefox, we
stop resolving that this is a Firefox browser, extension starts to use
Chrome API's and fails to inject.

Changes:
Since we are building different extensions for all supported browsers
(Chrome, Firefox, Edge), we predefine env variables for browser
resolution, which are populated in a build step.

DiffTrain build for commit 2c4c847.

Author: hoxyq

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

@@ -23986,7 +23986,7 @@ function createFiberRoot(
   return root;
 }
 
-var ReactVersion = "18.3.0-canary-41e9c17a6-20230829";
+var ReactVersion = "18.3.0-canary-2c4c84718-20230829";
 
 // Might add PROFILE later.
 

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

@@ -8612,7 +8612,7 @@ var devToolsConfig$jscomp$inline_1027 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-41e9c17a6-20230829",
+  version: "18.3.0-canary-2c4c84718-20230829",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1226 = {
@@ -8643,7 +8643,7 @@ var internals$jscomp$inline_1226 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-41e9c17a6-20230829"
+  reconcilerVersion: "18.3.0-canary-2c4c84718-20230829"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1227 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

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

@@ -9038,7 +9038,7 @@ var devToolsConfig$jscomp$inline_1069 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-41e9c17a6-20230829",
+  version: "18.3.0-canary-2c4c84718-20230829",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1267 = {
@@ -9069,7 +9069,7 @@ var internals$jscomp$inline_1267 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-41e9c17a6-20230829"
+  reconcilerVersion: "18.3.0-canary-2c4c84718-20230829"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1268 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

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

@@ -27,7 +27,7 @@ if (
 }
           "use strict";
 
-var ReactVersion = "18.3.0-canary-41e9c17a6-20230829";
+var ReactVersion = "18.3.0-canary-2c4c84718-20230829";
 
 // ATTENTION
 // When adding new symbols to this file,

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

@@ -616,4 +616,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-41e9c17a6-20230829";
+exports.version = "18.3.0-canary-2c4c84718-20230829";

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

@@ -619,7 +619,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-41e9c17a6-20230829";
+exports.version = "18.3.0-canary-2c4c84718-20230829";
 
           /* global __REACT_DEVTOOLS_GLOBAL_HOOK__ */
 if (

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

@@ -1 +1 @@
-41e9c17a69f819f20a29823a0acf18456c5ef4d2
+2c4c84718810bf3df411d599acc152d08208d35f