Resolve "Add option to disable `REQUEST AN ACCOUNT`"

Closes #626

See merge request !565

when there is no email account connected to request an account link then request an account link is disabled

Resolve "Add logic when to display `BACK TO MAP` link"

Closes #627

See merge request !563

Resolve "CLEAR button"

Closes #630

See merge request !562

Resolve "add support for modifications and states in sbml export/import"

Closes #572

See merge request !560