Update favicon to new logo from bb-storage

Author: moroten

cmd/bb_browser/BUILD.bazel

@@ -3,14 +3,21 @@ load("@io_bazel_rules_docker//go:image.bzl", "go_image")
 load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
 load("@npm//:purgecss/package_json.bzl", purgecss_bin = "bin")
 
+genrule(
+    name = "favicon",
+    srcs = ["@com_github_buildbarn_bb_storage//:buildbarn_logo_svg"],
+    outs = ["favicon.svg"],
+    cmd = "tr -d '\n' < $(location //:buildbarn_logo_svg) | sed -e 's/ content=\"[^\"]*\"//' -e 's/<!--[^!]*-->//g' > $@",
+)
+
 go_library(
     name = "bb_browser_lib",
     srcs = [
         "browser_service.go",
         "main.go",
     ],
     embedsrcs = [
-        "favicon.png",
+        ":favicon",
         "stylesheet.css",
         "templates/error.html",
         "templates/footer.html",

cmd/bb_browser/favicon.png

@@ -55,7 +55,7 @@ var (
 	templatesFS embed.FS
 	//go:embed stylesheet.css
 	stylesheet template.CSS
-	//go:embed favicon.png
+	//go:embed favicon.svg
 	favicon []byte
 )
 
@@ -130,7 +130,7 @@ func main() {
 			routePrefix += "/"
 		}
 
-		faviconURL := template.URL("data:image/png;base64," + base64.StdEncoding.EncodeToString(favicon))
+		faviconURL := template.URL("data:image/svg+xml;base64," + base64.StdEncoding.EncodeToString(favicon))
 		templates, err := template.New("templates").Funcs(template.FuncMap{
 			"basename":    path.Base,
 			"favicon_url": func() template.URL { return faviconURL },