Migrate Master Pages, Page Layouts and Pages from SharePoint 2010 On-premise to SharePoint Online

I have migrated data from SharePoint 2010 On-premise to SharePoint Online using SharePoint Migration Tool(SPMT).
 
When I migrated data from SharePoint On-premise to SharePoint Online the documents which are checked out that are not migrated.

Also, Master Pages, Page Layouts, and Pages library content did not migrate.

Can anyone help me with the above two blockers?