Update login API code

- Updated jsonwebtoken to latest version
- Trim `username` received from the login form ( Fixes #2348 )
- Make uuid and user_uuid a combined primary key for the devices table ( Fixes #2295 )
- Updated crates including regex which contains a CVE ( https://blog.rust-lang.org/2022/03/08/cve-2022-24713.html )

migrations/mysql/2022-03-02-210038_update_devices_primary_key/up.sql

@@ -0,0 +1,4 @@
+-- First remove the previous primary key
+ALTER TABLE devices DROP PRIMARY KEY;
+-- Add a new combined one
+ALTER TABLE devices ADD PRIMARY KEY (uuid, user_uuid);