Fix broken unicode urls

It wasn't possible to create unicode based URLs in freeurl mode, because
the noteid used for the websocket connection is double escaped. When we
decode it and let socketio-client reencode it, we get the real
shortid/noteid and can find the note in the database and open the
connection.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

Author: SISheogorath

public/js/lib/config/index.js

@@ -7,7 +7,7 @@ export const debug = window.debug || false
 export const port = window.location.port
 export const serverurl = `${window.location.protocol}//${domain || window.location.hostname}${port ? ':' + port : ''}${urlpath ? '/' + urlpath : ''}`
 window.serverurl = serverurl
-export const noteid = urlpath ? window.location.pathname.slice(urlpath.length + 1, window.location.pathname.length).split('/')[1] : window.location.pathname.split('/')[1]
+export const noteid = decodeURIComponent(urlpath ? window.location.pathname.slice(urlpath.length + 1, window.location.pathname.length).split('/')[1] : window.location.pathname.split('/')[1])
 export const noteurl = `${serverurl}/${noteid}`
 
 export const version = window.version