refactor: move svg rendering related code into separate module (#4588)

Co-authored-by: Alexandr <qwerty541zxc@gmail.com>

src/common/Card.js

@@ -1,4 +1,4 @@
-import { encodeHTML, flexLayout } from "./utils.js";
+import { encodeHTML, flexLayout } from "./render.js";
 
 class Card {
   /**

src/common/access.js

@@ -1,6 +1,6 @@
 // @ts-check
 
-import { renderError } from "./utils.js";
+import { renderError } from "./render.js";
 import { blacklist } from "./blacklist.js";
 import { whitelist, gistWhitelist } from "./envs.js";
 

src/common/fmt.js

@@ -1,7 +1,7 @@
 // @ts-check
 
 import wrap from "word-wrap";
-import { encodeHTML } from "./utils.js";
+import { encodeHTML } from "./render.js";
 
 /**
  * Retrieves num with suffix k(thousands) precise to given decimal places.

src/common/index.js

@@ -12,4 +12,4 @@ export {
   encodeHTML,
   flexLayout,
   measureText,
-} from "./utils.js";
+} from "./render.js";