feat: add support for custom favicons (#4770)

* feat: add support for custom favicons

* Commit updated API documentation

* chore(i18n): add localization of text

* fix(js): regenerate package lock file

* chore(test): add favicon test

* fix: max size not respected

* Commit updated API documentation

* fix: move favicon.ico to the static dir

* fix: fix tests

* fix: remove hard-coded content-type of icon

* chore: update extracted translations

* feat(admin): add support for resetting to default icon

* chore: use a higher res default favicon

* Commit updated API documentation

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Co-authored-by: Owncast <owncast@owncast.online>

webserver/router/middleware/auth.go

@@ -33,6 +33,7 @@ func RequireAdminAuth(handler http.HandlerFunc) http.HandlerFunc {
 		w.Header().Set("Access-Control-Allow-Origin", validAdminHost)
 		w.Header().Set("Access-Control-Allow-Credentials", "true")
 		w.Header().Set("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Authorization")
+		w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
 
 		// For request needing CORS, send a 204.
 		if r.Method == "OPTIONS" {