refactor(services): use Set instead of Arrays for faster lookups

src/services/utils.ts

@@ -152,19 +152,19 @@ function getContentDisposition(filename: string) {
     return `file; filename="${sanitizedFilename}"; filename*=UTF-8''${sanitizedFilename}`;
 }
 
-const STRING_MIME_TYPES = [
+const STRING_MIME_TYPES = new Set([
     "application/javascript",
     "application/x-javascript",
     "application/json",
     "application/x-sql",
     "image/svg+xml"
-];
+]);
 
 function isStringNote(type: string | undefined, mime: string) {
     // render and book are string note in the sense that they are expected to contain empty string
     return (type && ["text", "code", "relationMap", "search", "render", "book", "mermaid", "canvas"].includes(type))
         || mime.startsWith('text/')
-        || STRING_MIME_TYPES.includes(mime);
+        || STRING_MIME_TYPES.has(mime);
 }
 
 function quoteRegex(url: string) {