[mangadex] unescape manga names and chapter titles

pretty sure I previously tested if unescaping strings from the
embedded JSON object was necessary ... maybe they changed it

gallery_dl/extractor/4plebs.py

@@ -17,5 +17,5 @@ class FourplebsThreadExtractor(chan.FoolfuukaThreadExtractor):
     root = "https://archive.4plebs.org"
     pattern = [r"(?:https?://)?(?:archive\.)?4plebs\.org/([^/]+)/thread/(\d+)"]
     test = [("https://archive.4plebs.org/tg/thread/54059290", {
-        "url": "fd823f17b5001442b941fddcd9ec91bafedfbc79",
+        "url": "07452944164b602502b02b24521f8cee5c484d2a",
     })]

gallery_dl/extractor/mangadex.py

@@ -62,9 +62,9 @@ class MangadexChapterExtractor(MangadexExtractor, ChapterExtractor):
         group = data["other_groups"][str(data["chapter_id"])]
 
         return {
-            "manga": data["manga_title"],
+            "manga": text.unescape(data["manga_title"]),
             "manga_id": data["manga_id"],
-            "title": data["chapter_title"],
+            "title": text.unescape(data["chapter_title"]),
             "volume": text.parse_int(volume),
             "chapter": text.parse_int(chapter),
             "chapter_minor": minor or "",

gallery_dl/version.py

@@ -6,4 +6,4 @@
 # it under the terms of the GNU General Public License version 2 as
 # published by the Free Software Foundation.
 
-__version__ = "1.4.0"
+__version__ = "1.4.1-dev"