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

.config/example.yml

@@ -130,6 +130,7 @@ proxyBypassHosts:
 #proxySmtp: socks5://127.0.0.1:1080 # use SOCKS5
 
 # Media Proxy
+# Reference Implementation: https://github.com/misskey-dev/media-proxy
 #mediaProxy: https://example.com/proxy
 
 # Proxy remote files (default: false)