chore(rich-markdown-editor): drop useless String.raw in highlight.ts

biome 2.0's noUselessStringRaw flags HIGHLIGHT_BODY — its pattern has no escape sequences, so String.raw
is equivalent to a plain template literal (byte-identical value; interpolated into the other String.raw
regexes unchanged). Pre-existing on staging; the repo-wide lint gate blocks CI on it.

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/files/components/file-viewer/rich-markdown-editor/highlight.ts

@@ -13,7 +13,7 @@ import { Plugin } from '@tiptap/pm/state'
  * (`=(?!=)`) but never `==`, so a highlight over text containing `=` (e.g. `==a=b==`) round-trips while
  * the closing `==` still terminates the run.
  */
-const HIGHLIGHT_BODY = String.raw`(?:[^=]|=(?!=))+?`
+const HIGHLIGHT_BODY = `(?:[^=]|=(?!=))+?`
 const HIGHLIGHT_TOKEN = new RegExp(String.raw`^==(?!\s)(${HIGHLIGHT_BODY})(?<!\s)==`)
 /** Input/paste rule form (anchored on a preceding boundary) so typing `==x==` toggles the mark. */
 const HIGHLIGHT_INPUT = new RegExp(String.raw`(?:^|\s)(==(?!\s)(${HIGHLIGHT_BODY})(?<!\s)==)$`)