ota_page: Add missing quotation mark (#1977)

sd-card/html/ota_page.html

@@ -118,7 +118,7 @@
              * - *.bin
              * - *.zip */
             else if (filename.endsWith(".zip") || filename.endsWith(".bin")) { // Warning but still accepted
-                firework.launch('The filename does not match the suggested filename pattern, but is nevertheless accepted. You can now press "Upload and install', 'warning', 10000);
+                firework.launch('The filename does not match the suggested filename pattern, but is nevertheless accepted. You can now press "Upload and install".', 'warning', 10000);
             }
             /* Any other file name format is not accepted */
             else { // invalid