ISBN Support (#1985)

* Fixed a bug where weblinks would always show

* Started to try and support ico -> png conversion by manually grabbing image data out, but it's hard as hell.

* Implemented ability to parse out ISBN codes for books and ISBN-13 codes for ComicInfo. I can't figure out ISBN-10.

* Fixed Favicon not working on anything but windows

* Implemented ISBN support into Kavita

* Don't round so much when transforming bytes

openapi.json

@@ -10591,6 +10591,10 @@
             "description": "Comma-separated link of urls to external services that have some relation to the Chapter",
             "nullable": true
           },
+          "isbn": {
+            "type": "string",
+            "nullable": true
+          },
           "people": {
             "type": "array",
             "items": {
@@ -10750,6 +10754,11 @@
             "type": "string",
             "description": "Comma-separated link of urls to external services that have some relation to the Chapter",
             "nullable": true
+          },
+          "isbn": {
+            "type": "string",
+            "description": "ISBN-13 (usually) of the Chapter",
+            "nullable": true
           }
         },
         "additionalProperties": false,