MM-53736: Compliance export button state fix (#24488)

In system console > compliance export, if we set the radio button
from false to true. It would enable the "Run export now" button
as well. This would actually allow the user to create a job
without enabling compliance export.

As a result, there would be a job entry which would never run
because the config setting was never enabled.

To fix this, we don't enable/disable the button until the config
is actually saved.

https://mattermost.atlassian.net/browse/MM-53736
```release-note
NONE
```

---------

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

e2e-tests/cypress/tests/integration/channels/enterprise/system_console/compliance/compliance_export_ui_spec.js

@@ -148,7 +148,7 @@ describe('Compliance Export', () => {
         cy.findByTestId('enableComplianceExportfalse').click();
 
         // * Verify that exported button is disabled
-        cy.findByRole('button', {name: /run compliance export job now/i}).should('be.disabled');
+        cy.findByRole('button', {name: /run compliance export job now/i}).should('be.enabled');
     });
 
     it('MM-T1167 - Compliance Export job can be canceled', () => {

webapp/channels/src/components/admin_console/message_export_settings.jsx

@@ -42,6 +42,7 @@ export default class MessageExportSettings extends AdminSettings {
             enableComplianceExport: config.MessageExportSettings.EnableExport,
             exportFormat: config.MessageExportSettings.ExportFormat,
             exportJobStartTime: config.MessageExportSettings.DailyRunTime,
+            canRunJob: config.MessageExportSettings.EnableExport,
         };
         if (config.MessageExportSettings.GlobalRelaySettings) {
             state.globalRelayCustomerType = config.MessageExportSettings.GlobalRelaySettings.CustomerType;
@@ -316,7 +317,7 @@ export default class MessageExportSettings extends AdminSettings {
                         />
                     }
                     getExtraInfoText={this.getJobDetails}
-                    disabled={this.props.isDisabled || !this.state.enableComplianceExport}
+                    disabled={this.props.isDisabled || !this.state.canRunJob}
                 />
             </SettingsGroup>
         );