New API, Mobile Notifications

BREAKING CHANGES:
docker-compose.yaml: changed the api port to 6531

CHANGED:
Website Task-Progres shows remaining time
Website Display only new Chapters on selection screen
API: I hate ASP.NET and thus wrote my own (bad) Endpoint. It's so much lighter (just look at those file-sizes), and now I can use Newtonsoft.Json, because ASP.NET just didn't want to use it, no matter what I tried. I can also freely configure ports!

FIX Issue where Cover-Image would not be downloaded for standalone DownloadChapterTask
FIX Bug with selection on which Chapters to downloaded
FIX Chromium headless version for both windows and linux

ADD gotify Notifications
ADD lunasea Notifications

Hotfixes, Ability to download specifiy volumes

NEW Ability to download specific volumes/chapters

FIX Better progress tracking on tasks
FIX Bug on instantly failing tasks
FIX Bug on failed tasks that would not get properly disposed
FIX Order of new download-Tasks
FIX Multiple Authors

Hotfixes, Website can download single Tasks

FIX: Wrong comparison on add-task
FIX: Wrong variable name in api
FIX: Delete Task deletes sub-tasks

ADD: Tasktimeout retries after 3 minutes on failed task
ADD: Website ability to download chapters

BREAKING CHANGES ON API

Connector: Mangasee, Progresstracking

FIX Kavita naming issues
FIX Manganato download order now starting at 0
FIX Kavita legal characters

+ADD Connector Mangasee

Other changes:
Rewrote Task-Structure to enable tracking of progress
When deleting a DownloadNewChapters Task all derived DownloadChapter tasks will also be deleted

v1.2: Connector: Manganato

+NEW Connector: MangaNato.com #2

Website Design Publication Viewer overflows
Website Design Settings placeholders better display if configured
+NEW Website Favicon
+NEW Website Filter #23

+FIX Bug where ImageCacheFolder wasn't already created
+FIX Bug #25 where settings.json downloadLocation would be empty, causing crash on startup