[cueweb] Encode mailto: spaces as %20 (not +) in Email Artist + Request Cores

- URLSearchParams.toString() encodes spaces as "+", but mailto: per RFC 6068 only treats "%20" as space - so subject + body would arrive in the mail client with literal "+" characters.
- request-cores-dialog: corrupted the padEnd-aligned Layer Name / Minimum Memory / Min Cores table.
- email-artist-dialog: same bug (identical mailto pattern).
- Both now normalize with .replace(/\+/g, "%20") before window.location.href, with a comment citing RFC 6068.

Author: ramonfigueiredo

cueweb/components/ui/email-artist-dialog.tsx

@@ -139,7 +139,12 @@ export function EmailArtistDialog() {
     if (bcc.trim()) params.set("bcc", bcc.trim());
     if (subject) params.set("subject", subject);
     if (body) params.set("body", body);
-    const qs = params.toString();
+    // URLSearchParams encodes spaces as "+", but per RFC 6068 mailto: URIs
+    // do NOT decode "+" as space - only "%20" is treated that way - so
+    // every space in the subject and body would arrive as a literal "+"
+    // in the user's mail client. Normalize before handing the URL to
+    // the browser.
+    const qs = params.toString().replace(/\+/g, "%20");
     const url = qs
       ? `mailto:${encodeURIComponent(to.trim())}?${qs}`
       : `mailto:${encodeURIComponent(to.trim())}`;

cueweb/components/ui/request-cores-dialog.tsx

@@ -208,7 +208,13 @@ export function RequestCoresDialog() {
     if (bcc.trim()) params.set("bcc", bcc.trim());
     if (subject) params.set("subject", subject);
     if (body) params.set("body", body);
-    const qs = params.toString();
+    // URLSearchParams encodes spaces as "+", but per RFC 6068 mailto: URIs
+    // do NOT decode "+" as space - only "%20" is treated that way - so
+    // every space in the subject and body (including the padEnd spaces
+    // that align the Layer Name / Minimum Memory / Min Cores columns)
+    // would arrive as a literal "+" character in the user's mail client.
+    // Normalize before handing the URL to the browser.
+    const qs = params.toString().replace(/\+/g, "%20");
     const url = qs
       ? `mailto:${encodeURIComponent(to.trim())}?${qs}`
       : `mailto:${encodeURIComponent(to.trim())}`;