After reload report page, form fields are writable without permissions

[emdv88]

Steps to reproduce:

• log in as a user without edit report permission
• navigate to a report
• reload page
• All form fields are now writable, but the changes will have no effect because the api correctly returns a 403

This bug occurs because in App.js the reload_reports function is never called when the page is loaded directly on a specific report.
Possible solution: in reload_report, also make a call to the reports_overview api endpoint. Possibly store that data in a context provider, along with the datamodel and the permissions.