fix: use `pluginId` key

`Plugin` was renamed to `Extension` all over the project to unify terminology.
However the daemon API is still returning map with `PluginId` key.

Bug introduced with: 9b50c919

Change-Id: Ic3cdfb9a490456445668e111188e6cafee7b540d

jami-android/app/src/main/java/cx/ring/extensions/ExtensionUtils.kt

@@ -62,7 +62,7 @@ object ExtensionUtils {
         val mediaHandlers = JamiService.getCallMediaHandlers().toList()
         for (callMediaHandler in mediaHandlers) {
             val pDetail = JamiService.getCallMediaHandlerDetails(callMediaHandler)
-            if (pDetail["extensionId"]!!.lowercase(Locale.getDefault()).contains(name.lowercase(Locale.getDefault())))
+            if (pDetail["pluginId"]!!.lowercase(Locale.getDefault()).contains(name.lowercase(Locale.getDefault())))
             {
                 res = callMediaHandler!!
             }