remove the file extension of a paste internally so we only find by the real id

src/main/java/cc/fascinated/backend/service/PasteService.java

@@ -84,6 +84,7 @@ public class PasteService {
      * @return The content of the paste.
      */
     public Paste getPaste(String id) {
+        id = id.contains(".") ? id.split("\\.")[0] : id; // Remove file extensions (if any)
         log.info("Getting paste with the id '{}'", id);
         long before = System.currentTimeMillis();
         Optional<Paste> paste = pasteRepository.findById(id);