Make "TLC Service Request Number" clearer for non-TLC vehicles (#549)

See https://www.reddit.com/r/NYCbike/comments/1ftea2k/how_does_reported_web_app_work/:

> Does anything happen with non-TLC submissions? I’ve had success
> reporting cars before just using 311 although reported makes it really
> easy. but it seems my other submissions aren’t getting submitted to 311?
> see photo.

> Apologies for the delay, but I figured out what was going on, with the
> help of the founder of Reported.
>
> Due to a quirk in how Reported app submissions are processed on the
> backend (which is a different, closed-source code base), non-TLC
> submissions do indeed get sent to 311 as a Service Request that 311
> routes to the NYPD, but the SR number doesn't get stored in the same
> database table that a TLC submission's 311 SR number would (because
> Reported submissions for TLC plates become two 311 SRs, one for TLC and
> one for NYPD), so the web app frontend currently acts as if the
> submission was never processed by the Reported backend, even though it
> was.
>
> In the short term, I'll try to update the text on the webapp to indicate
> this ambiguity, and in the long term, I may be able to update the webapp
> to show all relevant 311 SR numbers for a given Reported submission,
> both NYPD and TLC (if applicable).
>
> As for how to know whether the NYPD SR has been created: If you've made
> a subsequent Reported submission for a TLC plate and the SR number does
> appear, then you can be confident that the non-TLC submission's NYPD SR
> has been created, since the Reported backend processes submissions
> chronologically.
>
> Let me know if that makes sense, I'm happy to explain further!

See also the Slack thread for further investigation: https://reportedcab.slack.com/archives/C802R14UX/p1727754085142069

src/components/SubmissionDetails.js

@@ -109,6 +109,11 @@ class SubmissionDetails extends React.Component {
         </button>
       );
 
+    const displayReqnumber =
+      reqnumber === 'N/A until submitted to 311'
+        ? 'N/A: Either not yet submitted to 311, or is a non-TLC vehicle and therefore does not have a TLC SR'
+        : reqnumber;
+
     return (
       <details
         open={this.state.isDetailsOpen}
@@ -123,7 +128,7 @@ class SubmissionDetails extends React.Component {
           {/* eslint-disable-next-line camelcase */}
           {(loc1_address || '').split(',')[0]} on {humanTimeString}
           <br />
-          TLC Service Request Number: {reqnumber}
+          TLC Service Request Number: {displayReqnumber}
         </summary>
 
         {this.state.isDetailsOpen && (