MM-58066-Use Client Config to determine AppsEnabled (#27872)

* remove enabling apps plugin by default

* use client config to determine creating app bindings.

* update the way dispatch is made

* updated type setting

* fixed unit test

* prevent a nil check

* dispatch batch

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

server/config/client.go

@@ -302,6 +302,7 @@ func GenerateLimitedClientConfig(c *model.Config, telemetryID string, license *m
 	props["HasImageProxy"] = strconv.FormatBool(*c.ImageProxySettings.Enable)
 
 	props["PluginsEnabled"] = strconv.FormatBool(*c.PluginSettings.Enable)
+	props["AppsPluginEnabled"] = strconv.FormatBool(*c.PluginSettings.Enable && c.PluginSettings.PluginStates[model.PluginIdApps] != nil && c.PluginSettings.PluginStates[model.PluginIdApps].Enable)
 
 	props["PasswordMinimumLength"] = strconv.Itoa(*c.PasswordSettings.MinimumLength)
 	props["PasswordRequireLowercase"] = strconv.FormatBool(*c.PasswordSettings.Lowercase)