Add set_video() helper to the embed (#690)

* fix: unable to send custom classes to instantiate Embed

* fix: remove useless __init__ statements

* ci: correct from checks.

* feat: add Embed.set_video() helper method

* ci: correct from checks.

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: mAxYoLo01

interactions/api/models/message.py

@@ -1248,12 +1248,34 @@ def set_image(
 
         self.image = EmbedImageStruct(url=url, proxy_url=proxy_url, height=height, width=width)
 
+    def set_video(
+        self,
+        url: str,
+        proxy_url: Optional[str] = None,
+        height: Optional[int] = None,
+        width: Optional[int] = None,
+    ) -> None:
+        """
+        Sets the embed's video
+
+        :param url: Url of the video
+        :type url: str
+        :param proxy_url?: A proxied url of the video
+        :type proxy_url?: Optional[str]
+        :param height?: The video's height
+        :type height?: Optional[int]
+        :param width?: The video's width
+        :type width?: Optional[int]
+        """
+
+        self.video = EmbedImageStruct(url=url, proxy_url=proxy_url, height=height, width=width)
+
     def set_thumbnail(
         self,
         url: str,
         proxy_url: Optional[str] = None,
-        height: int = None,
-        width: Optional[str] = None,
+        height: Optional[int] = None,
+        width: Optional[int] = None,
     ) -> None:
         """
         Sets the embed's thumbnail

interactions/api/models/message.pyi

@@ -296,4 +296,5 @@ class Embed(DictSerializerMixin):
     def set_author(self, name: str, url: Optional[str] = None, icon_url: Optional[str] = None, proxy_icon_url: Optional[str] = None) -> None: ...
     def set_footer(self, text: str, icon_url: Optional[str] = None, proxy_icon_url: Optional[str] = None) -> None: ...
     def set_image(self, url: str, proxy_url: Optional[str] = None, height: Optional[int] = None, width: Optional[int] = None) -> None: ...
+    def set_video(self, url: str, proxy_url: Optional[str] = None, height: Optional[int] = None, width: Optional[int] = None) -> None: ...
     def set_thumbnail(self, url: str, proxy_url: Optional[str] = None, height: Optional[int] = None, width: Optional[int] = None) -> None: ...