Migrate to Bangumi's newer v0 API (#1748)

This comes with many benefits:
- Starting dates are now available and shown to users
- Lays groundwork to add private tracking for Bangumi, e.g. in #1736
- Mihon makes approximately 2-4 times fewer calls to Bangumi's API
- Simplified interceptor for the access token addition
  - v0 does not allow access tokens in the query string
- There is actively maintained documentation for it

Also shrunk the DTOs for Bangumi by removing attributes we have no
use for either now or in the foreseeable future. Volume data remains
in case Mihon wants to ever support volumes. But attributes such as
user avatars, nicknames, data relating to Bangumi's tag & meta-tag
systems, etc. have been removed or just not added to the DTOs.

CHANGELOG.md

@@ -19,6 +19,9 @@ The format is a modified version of [Keep a Changelog](https://keepachangelog.co
 ### Changed
 - Apply "Downloaded only" filter to all entries regardless of favourite status ([@NGB-Was-Taken](https://github.com/NGB-Was-Taken)) ([#1603](https://github.com/mihonapp/mihon/pull/1603))
 - Ignore hidden files/folders for Local Source chapter list ([@BrutuZ](https://github.com/BrutuZ)) ([#1763](https://github.com/mihonapp/mihon/pull/1763))
+- Migrate to newer Bangumi API ([@MajorTanya](https://github.com/MajorTanya)) ([#1748](https://github.com/mihonapp/mihon/pull/1748))
+  - Now showing manga starting dates in search
+  - Reduced request load by 2-4x in certain situations
 
 ### Fixed
 - Fix MAL `main_picture` nullability breaking search if a result doesn't have a cover set ([@MajorTanya](https://github.com/MajorTanya)) ([#1618](https://github.com/mihonapp/mihon/pull/1618))