feat(MM-61865): Add mobile client content load network metrics (#29601)

* MM-61865: Add mobile client content load network metrics

* added new common label

* renaming from MobileClientContentLoad to MobileClientNetworkRequests
* content_load_group => network_request_group

* refactor more NetworkRequest-* changes

* replace contentLoadGroup to networkRequestGroup

* new metrics elapsedTime

* Refactor urlCount to totalRequests

* add averageSpeed metric
* replace contentLoadGroup with networkRequestGroup
* use h.Labels vs commonLabels for network_request_group

* add agent

* add effective latency metrics

* add total parallel requests & total sequential

* mocks generated by mockery

* did a bit of cleanup and sorting

* formatting

* updated the AcceptedNetworkRequestGroups

* cleanup and sorting

server/channels/app/metrics.go

@@ -100,6 +100,51 @@ func (a *App) RegisterPerformanceReport(rctx request.CTX, report *model.Performa
 		case model.MobileClientTeamSwitchDuration:
 			a.Metrics().ObserveMobileClientTeamSwitchDuration(commonLabels["platform"],
 				h.Value/1000)
+		case model.MobileClientNetworkRequestsAverageSpeed:
+			a.Metrics().ObserveMobileClientNetworkRequestsAverageSpeed(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
+		case model.MobileClientNetworkRequestsEffectiveLatency:
+			a.Metrics().ObserveMobileClientNetworkRequestsEffectiveLatency(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
+		case model.MobileClientNetworkRequestsElapsedTime:
+			a.Metrics().ObserveMobileClientNetworkRequestsElapsedTime(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
+		case model.MobileClientNetworkRequestsLatency:
+			a.Metrics().ObserveMobileClientNetworkRequestsLatency(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
+		case model.MobileClientNetworkRequestsTotalCompressedSize:
+			a.Metrics().ObserveMobileClientNetworkRequestsTotalCompressedSize(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
+		case model.MobileClientNetworkRequestsTotalParallelRequests:
+			a.Metrics().ObserveMobileClientNetworkRequestsTotalParallelRequests(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
+		case model.MobileClientNetworkRequestsTotalRequests:
+			a.Metrics().ObserveMobileClientNetworkRequestsTotalRequests(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
+		case model.MobileClientNetworkRequestsTotalSequentialRequests:
+			a.Metrics().ObserveMobileClientNetworkRequestsTotalSequentialRequests(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
+		case model.MobileClientNetworkRequestsTotalSize:
+			a.Metrics().ObserveMobileClientNetworkRequestsTotalSize(commonLabels["platform"],
+				commonLabels["agent"],
+				h.Labels["network_request_group"],
+				h.Value)
 		case model.DesktopClientCPUUsage:
 			a.Metrics().ObserveDesktopCpuUsage(commonLabels["platform"], commonLabels["desktop_app_version"], h.Labels["process"], h.Value)
 		case model.DesktopClientMemoryUsage: