Generate invite tokens from admin-fe

This MR allows to create invite tokens, list them on a separate tab, invite users via email. It also updates error handling and allows to generate tokens for resetting password.

Closes #28 (closed)

src/store/modules/invites.js

@@ -14,14 +14,14 @@ const invites = {
       state.newToken = token
     },
     SET_TOKENS: (state, tokens) => {
-      state.inviteTokens = tokens.reverse()
+      state.inviteTokens = tokens
     }
   },
   actions: {
     async FetchInviteTokens({ commit, getters }) {
       commit('SET_LOADING', true)
       const response = await listInviteTokens(getters.authHost, getters.token)
-      commit('SET_TOKENS', response.data.invites)
+      commit('SET_TOKENS', response.data.invites.reverse())
       commit('SET_LOADING', false)
     },
     async GenerateInviteToken({ commit, dispatch, getters }, { maxUse, expiresAt }) {