perf(server): improvement of external mediaProxy (#9787)

* perf(server): improvement of external mediaProxy

* add a comment

* ✌️

* /filesでsharpの処理を行わずリダイレクトする

* fix

* thumbnail => static

* Fix #9788

* add avatar mode

* add url

* fix

* static.webp

* remove encodeURIComponent from media proxy path

* remove existance check

packages/backend/src/core/CustomEmojiService.ts

@@ -120,7 +120,7 @@ export class CustomEmojiService {
 		const url = isLocal
 			? emojiUrl
 			: this.config.proxyRemoteFiles
-				? `${this.config.url}/proxy/${encodeURIComponent((new URL(emojiUrl)).pathname)}?${query({ url: emojiUrl })}`
+				? `${this.config.mediaProxy}/emoji.webp?${query({ url: emojiUrl })}`
 				: emojiUrl;
 
 		return url;