It appears that the repository has undergone several changes and renamings:

backend/node_modules/string-width/index.d.ts

@@ -1,29 +0,0 @@
-export interface Options {
-	/**
-	Count [ambiguous width characters](https://www.unicode.org/reports/tr11/#Ambiguous) as having narrow width (count of 1) instead of wide width (count of 2).
-
-	@default true
-	*/
-	readonly ambiguousIsNarrow: boolean;
-}
-
-/**
-Get the visual width of a string - the number of columns required to display it.
-
-Some Unicode characters are [fullwidth](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) and use double the normal width. [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code) are stripped and doesn't affect the width.
-
-@example
-```
-import stringWidth from 'string-width';
-
-stringWidth('a');
-//=> 1
-
-stringWidth('古');
-//=> 2
-
-stringWidth('\u001B[1m古\u001B[22m');
-//=> 2
-```
-*/
-export default function stringWidth(string: string, options?: Options): number;