Preliminary fix for update button deleting all mangas

[db-2001]

Moved the code to populate the mangas into ResetContent().

Addresses #18 (but with proper Git etiquette)

[C9Glax]

Okay thank you 😄
The reason

GetMonitorJobs().then((json) => {
    if(monitoringJobsCount != json.length){
      ResetContent();
      //console.log(json);
      json.forEach(job => {
        var mangaView = CreateManga(job.manga, job.mangaConnector.name);
        mangaView.addEventListener("click", (event) => {
          ShowMangaWindow(job, job.manga, event, false);
        });
        tasksContent.appendChild(mangaView);
      });
      monitoringJobsCount = json.length;
    }
  });

was in UpdateJobs() was to also reflect changes made from other sources. With the removal from that function (which is called every second, see line 83-85), these - to the website - external changes would only become apparent when reloading.

So you could leave that block in UpdateJobs() (with the comparison of monitoringJobsCount), and just additionally call in ResetContent() I think it should work.

[db-2001]

Ok, yeah, that makes sense, I wasn't necessarily thinking about external sources. I added that block of code as it was originally back in, in addition to adding it into ResetContent()