fix: header buttons not working (#228)

fix:

header buttons not working.
sub-issues mutation.
customized the datepicker.
mutation in the list and kanban view.
some icons not displaying.
fixed routing and added toast alert after creating a workspace.
workspace logo display design in workspace settings.
delete issue mutation error in cycles and modules.

feat:

added authorization to issue details page.

apps/app/types/modules.d.ts

@@ -8,9 +8,9 @@ export interface IModule {
   description_html: any;
   id: string;
   lead: string | null;
-  lead_detail: IUserLite;
+  lead_detail: IUserLite | null;
   link_module: {
-    created_at: Date
+    created_at: Date;
     created_by: string;
     created_by_detail: IUserLite;
     id: string;