More notification metrics fixes (#26889)

* Explicitly have the client tell the server when it should expect an ACK

* Don't count missing profile errors for your own posts, added comment

* Fix test

* Make postedAck a parameter in WebSocketClient

* Snapshot fixes

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

webapp/channels/src/actions/websocket_actions.jsx

@@ -179,7 +179,7 @@ export function initialize() {
     WebSocketClient.addMissedMessageListener(restart);
     WebSocketClient.addCloseListener(handleClose);
 
-    WebSocketClient.initialize(connUrl);
+    WebSocketClient.initialize(connUrl, undefined, true);
 }
 
 export function close() {

webapp/channels/src/components/post_view/post_body_additional_content/__snapshots__/post_body_additional_content.test.tsx.snap

@@ -111,6 +111,7 @@ exports[`PostBodyAdditionalContent with a normal link Should render the plugin c
         "messageListeners": Set {},
         "missedEventCallback": null,
         "missedMessageListeners": Set {},
+        "postedAck": false,
         "reconnectCallback": null,
         "reconnectListeners": Set {},
         "responseCallbacks": Object {},
@@ -157,6 +158,7 @@ exports[`PostBodyAdditionalContent with a normal link Should render the plugin c
         "messageListeners": Set {},
         "missedEventCallback": null,
         "missedMessageListeners": Set {},
+        "postedAck": false,
         "reconnectCallback": null,
         "reconnectListeners": Set {},
         "responseCallbacks": Object {},

webapp/channels/src/plugins/pluggable/__snapshots__/pluggable.test.tsx.snap

@@ -115,6 +115,7 @@ exports[`plugins/Pluggable should match snapshot with extended component 1`] = `
           "messageListeners": Set {},
           "missedEventCallback": null,
           "missedMessageListeners": Set {},
+          "postedAck": false,
           "reconnectCallback": null,
           "reconnectListeners": Set {},
           "responseCallbacks": Object {},
@@ -248,6 +249,7 @@ exports[`plugins/Pluggable should match snapshot with extended component with pl
           "messageListeners": Set {},
           "missedEventCallback": null,
           "missedMessageListeners": Set {},
+          "postedAck": false,
           "reconnectCallback": null,
           "reconnectListeners": Set {},
           "responseCallbacks": Object {},
@@ -507,6 +509,7 @@ exports[`plugins/Pluggable should match snapshot with null pluggableId 1`] = `
           "messageListeners": Set {},
           "missedEventCallback": null,
           "missedMessageListeners": Set {},
+          "postedAck": false,
           "reconnectCallback": null,
           "reconnectListeners": Set {},
           "responseCallbacks": Object {},
@@ -641,6 +644,7 @@ exports[`plugins/Pluggable should match snapshot with valid pluggableId 1`] = `
           "messageListeners": Set {},
           "missedEventCallback": null,
           "missedMessageListeners": Set {},
+          "postedAck": false,
           "reconnectCallback": null,
           "reconnectListeners": Set {},
           "responseCallbacks": Object {},