MM-55966 - Update ArrayFromJSON to use LimitedReader (#25510)

* update ArrayFromJSON to use LimitedReader

* update for bad merge

* fix lint errors

* update test code

* update unit tests

* update unit tests

* fix unit tests

* use consts, other cleanup

* add non sorting duplicate check

* set config to default value, then config setting if available

* fix lint errors

* fixes and debugs

* fix log test

* remove setting from Client, add unlimited Parser to client

* a couple more fixes

* another fix

* rename some variables

* remove superflous call

* check for valid MaximumPayloadSize

* update language file

* fix for e2e-tests

* update util function to return error

* lint fix

* update config property name to include unit

* fix for unit test

* add new config to telemetry

* call function to create LimitedReader

* Deprecate old function, use new function name

* return new AppError on failed parse

* return new AppError on failed parse

* return new AppError on failed parse

* add constant for i18n valid constants

* Update server/public/model/utils_test.go

Co-authored-by: Miguel de la Cruz <mgdelacroix@gmail.com>

* Apply suggestions from code review

Co-authored-by: Miguel de la Cruz <mgdelacroix@gmail.com>

* update error variable, remove unnecessary check

* Update function names

* fix errors from merge

* update unit test to create unique ids

---------

Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: Miguel de la Cruz <mgdelacroix@gmail.com>

server/public/model/config.go

@@ -402,6 +402,7 @@ type ServiceSettings struct {
 	AllowSyncedDrafts                                 *bool   `access:"site_posts"`
 	UniqueEmojiReactionLimitPerPost                   *int    `access:"site_posts"`
 	RefreshPostStatsRunTime                           *string `access:"site_users_and_teams"`
+	MaximumPayloadSizeBytes                           *int64  `access:"environment_file_storage,write_restrictable,cloud_restrictable"`
 }
 
 var MattermostGiphySdkKey string
@@ -908,6 +909,10 @@ func (s *ServiceSettings) SetDefaults(isUpdate bool) {
 	if s.RefreshPostStatsRunTime == nil {
 		s.RefreshPostStatsRunTime = NewString("00:00")
 	}
+
+	if s.MaximumPayloadSizeBytes == nil {
+		s.MaximumPayloadSizeBytes = NewInt64(100000)
+	}
 }
 
 type ClusterSettings struct {
@@ -3978,6 +3983,10 @@ func (s *ServiceSettings) isValid() *AppError {
 		}
 	}
 
+	if *s.MaximumPayloadSizeBytes <= 0 {
+		return NewAppError("Config.IsValid", "model.config.is_valid.max_payload_size.app_error", nil, "", http.StatusBadRequest)
+	}
+
 	if *s.ReadTimeout <= 0 {
 		return NewAppError("Config.IsValid", "model.config.is_valid.read_timeout.app_error", nil, "", http.StatusBadRequest)
 	}