Logout bug hunt (#294)

* Stop storing the log on disk

* Add more info to the session logging

* Only clear session tokens from storage when they've expired

* Retry session resumption a few times if it's a network issue

* Improvements to the 'connecting' screen

src/state/models/root-store.ts

@@ -78,7 +78,6 @@ export class RootStoreModel {
   serialize(): unknown {
     return {
       appInfo: this.appInfo,
-      log: this.log.serialize(),
       session: this.session.serialize(),
       me: this.me.serialize(),
       shell: this.shell.serialize(),
@@ -93,9 +92,6 @@ export class RootStoreModel {
           this.setAppInfo(appInfoParsed.data)
         }
       }
-      if (hasProp(v, 'log')) {
-        this.log.hydrate(v.log)
-      }
       if (hasProp(v, 'me')) {
         this.me.hydrate(v.me)
       }