Fix: loading bundle using debug_http_host preferences (#54687)

Summary:
In #54139 I have removed checking shared preferences for `debug_http_host`. The diff reverts this removal because it is used for changing the bundle source before the app starts.

## Changelog:

[ANDROID][FIXED] - revert removal of checking shared preferences for `debug_http_host`.

Pull Request resolved: #54687

Test Plan:
I have run the `rn-tester` app and swapped a default prefs file on Android emulator located in:  `/data/data/com.facebook.react.uiapp/shared_prefs/com.facebook.react.uiapp_preferences.xml` with one that had updated port in `debug_http_host` setting to `8082`:

```xml
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<map>
    <boolean name="fps_debug" value="true" />
    <string name="debug_http_host">10.0.2.2:8082</string>
    <boolean name="inspector_debug" value="true" />
</map>
```

Then, I have run the app and checked if the bundle is loaded from the Metro instance invoked using `yarn start --port 8082`.

Reviewed By: cortinico

Differential Revision: D87869540

Pulled By: coado

fbshipit-source-id: 9a76990b097ad7ff24cbbc5202ca935053de23e5

Author: coado

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/packagerconnection/PackagerConnectionSettings.kt

@@ -5,13 +5,19 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+@file:Suppress("DEPRECATION") // PreferenceManager should be migrated to androidx
+
 package com.facebook.react.packagerconnection
 
 import android.content.Context
+import android.content.SharedPreferences
+import android.preference.PreferenceManager
 import com.facebook.common.logging.FLog
 import com.facebook.react.modules.systeminfo.AndroidInfoHelpers
 
 public open class PackagerConnectionSettings(private val appContext: Context) {
+  private val preferences: SharedPreferences =
+      PreferenceManager.getDefaultSharedPreferences(appContext)
   public val packageName: String = appContext.packageName
   private val _additionalOptionsForPackager: MutableMap<String, String> = mutableMapOf()
   private var _packagerOptionsUpdater: (Map<String, String>) -> Map<String, String> = { it }
@@ -24,6 +30,12 @@ public open class PackagerConnectionSettings(private val appContext: Context) {
       cachedHost?.let {
         return it
       }
+
+      val hostFromSettings = preferences.getString(PREFS_DEBUG_SERVER_HOST_KEY, null)
+      if (!hostFromSettings.isNullOrEmpty()) {
+        return hostFromSettings
+      }
+
       val host = AndroidInfoHelpers.getServerHost(appContext)
       if (host == AndroidInfoHelpers.DEVICE_LOCALHOST) {
         FLog.w(
@@ -63,5 +75,6 @@ public open class PackagerConnectionSettings(private val appContext: Context) {
 
   private companion object {
     private val TAG = PackagerConnectionSettings::class.java.simpleName
+    private const val PREFS_DEBUG_SERVER_HOST_KEY = "debug_http_host"
   }
 }