fix(amazonq): suggestion not visible in remote for 24.3+ (aws#5399)

Author: zixlin7

.changes/next-release/bugfix-1a22ff93-2d99-4527-a73b-26dba66c4f71.json

@@ -0,0 +1,4 @@
+{
+  "type" : "bugfix",
+  "description" : "Fix suggestion not visible in remote for 2024.3"
+}

plugins/amazonq/src/main/resources/META-INF/plugin.xml

@@ -86,6 +86,8 @@
     <extensions defaultExtensionNs="com.intellij">
         <registryKey key="amazon.q.endpoint" description="Endpoint to use for Amazon Q"
                      defaultValue="https://codewhisperer.us-east-1.amazonaws.com/" restartRequired="true"/>
+        <registryKey key="inline.completion.rem.dev.use.rhizome" description="Defined by IntelliJ. Used for Amazon Q to display suggestions on remote."
+                     defaultValue="false" restartRequired="true"/>
     </extensions>
 
     <xi:include href="/META-INF/module-amazonq.xml" />