fixed routes for dashboard

src/container/Tracim.jsx

               {/* bellow, the '?' is important, it avoid to have to declare another route for CONTENT_LIST which could double match */}
               <PrivateRoute path={PAGE.WORKSPACE.CONTENT(':idws', ':idcts?')} component={WorkspaceContent} />
               <PrivateRoute path={PAGE.ACCOUNT} component={Account} />
-              <PrivateRoute path={PAGE.WORKSPACE.DASHBOARD()} component={Dashboard} />
+              <PrivateRoute exact path={PAGE.WORKSPACE.DASHBOARD()} component={Dashboard} />
               <PrivateRoute path={'/wip/:cp'} component={WIPcomponent} /> {/* for testing purpose only */}
 
               <Footer />

src/helper.js

 export const PAGE = {
   HOME: '/',
   WORKSPACE: {
-    DASHBOARD: (idws = 'idws') => `/workspace/${idws}`,
+    DASHBOARD: (idws = ':idws') => `/workspace/${idws}`,
     NEW: '/workspace/new',
     CALENDAR: (idws = ':idws') => `/workspace/${idws}/apps/calendar`,
     CONTENT_LIST: (idws = ':idws') => `/workspace/${idws}/apps/contents`,