Don't display a value for `Disable After` for disabled users

Signed-off-by: Phillip Rak <rak.phillip@gmail.com>

shell/config/table-headers.js

@@ -416,7 +416,7 @@ export const USER_LAST_LOGIN = {
 export const USER_DISABLED_IN = {
   name:          'user-disabled-in',
   labelKey:      'tableHeaders.userDisabledIn',
-  value:         'userDisabledIn',
+  value:         'userDisabledInDisplay',
   formatter:     'LiveDate',
   formatterOpts: { isCountdown: true },
   sort:          'userDisabledIn',

shell/models/management.cattle.io.user.js

@@ -116,6 +116,14 @@ export default class User extends HybridModel {
     return this.metadata?.labels?.['cattle.io/disable-after'] * 1000;
   }
 
+  /**
+   * Provides a display value for the userDisabledIn date based on the user
+   * state.
+   */
+  get userDisabledInDisplay() {
+    return this.state === 'inactive' ? null : this.userDisabledIn;
+  }
+
   /**
    * Gets the delete-after label in milliseconds
    * @returns {number}
@@ -260,7 +268,7 @@ export default class User extends HybridModel {
         label:         this.t('tableHeaders.userDisabledIn'),
         formatter:     'LiveDate',
         formatterOpts: { isCountdown: true },
-        content:       this.userDisabledIn,
+        content:       this.userDisabledInDisplay,
       },
       {
         label:         this.t('tableHeaders.userDeletedIn'),