fix: correct trimming header if someone put space in lang

Author: fgSka

src/main/java/one/edee/babylon/imp0rt/ImportSheetProcessor.java

@@ -68,7 +68,7 @@ private Map<Integer,String> createHeader(RowData headerData) {
         int col = 0;
         Map<Integer,String> header = new LinkedHashMap<>();
         for (CellData cellData : headerData.getValues()) {
-            String cellValue = cellData.getFormattedValue();
+            String cellValue = cellData.getFormattedValue().trim();
             header.put(col++, cellValue);
         }
         return header;