fix(tracker): make Project.defaultIssueStatus optional (#10598)

defaultIssueStatus is not reliably populated for all projects.Make the field optional in the type definition and guard the
  migration to handle undefined values.

Signed-off-by: Igor Loskutov <igor.loskutoff@gmail.com>

plugins/tracker/src/index.ts

@@ -61,7 +61,7 @@ export interface IssueStatus extends Status {}
 export interface Project extends TaskProject, IconProps {
   identifier: string // Project identifier
   sequence: number
-  defaultIssueStatus: Ref<IssueStatus>
+  defaultIssueStatus?: Ref<IssueStatus>
   defaultAssignee?: Ref<Employee>
   defaultTimeReportDay: TimeReportDayType
 }