refactor: move submission and form logic up to submission page

See merge request xpub/xpub-elife!64

Reduces duplication and paves the way for redirecting the user to the last valid page.

fix: file upload form validation

See merge request xpub/xpub-elife!67

Was previously checking the wrong field
Also fix it to show completed message when a file was previously uploaded

refactor: update local npm package names

See merge request xpub/xpub-elife!68

Packages destined for pubsweet are prefixed with @pubsweet-pending
Internal packages are prefixed with @elife-xpub

feat: error page

See merge request xpub/xpub-elife!58

Remove the user specification so that the correct permissions are used.

See merge request xpub/xpub-elife!63

Show styled error page instead of plain text error messages for GraphQL errors.
Clear auth token from localstorage if user not found in DB.
Fix Jest config to run tests in app.

feat: send manuscripts to ScienceBeam for conversion

See merge request xpub/xpub-elife!61

41 dropzone molecule

See merge request xpub/xpub-elife!55

re #41

re #41

re #41

re #41

119 e2e validation error

See merge request xpub/xpub-elife!59

test(e2e): add proper pdf manuscript for e2e tests

See merge request xpub/xpub-elife!57

51 orcid api

See merge request xpub/xpub-elife!56

106 e2e login test

See merge request xpub/xpub-elife!54

WIP refactor: request user details from orchid within createSubmission mutation & test for orchid error

refactor: create mock of orcid server & use this in e2e login test (using forked version of passport-orcid)