Updated code for date filter in call pagination endpoint

src/main/java/net/gepafin/tendermanagement/enums/MatchModeEnum.java

@@ -4,14 +4,14 @@ import com.fasterxml.jackson.annotation.JsonValue;
 
 
 public enum MatchModeEnum {
-    STARTSWITH("starts with"),
-    ENDSWITH("ends with"),
+    STARTSWITH("startsWith"),
+    ENDSWITH("endsWith"),
     CONTAINS("contains"),
     EQUALS("equals"),
-    DATEIS("date is"),
-    DATEISNOT("date is not"),
-    BEFORE("date is before"),
-    AFTER("date is after");
+    DATEIS("dateIs"),
+    DATEISNOT("dateIsNot"),
+    BEFORE("dateBefore"),
+    AFTER("dateAfter");
 
     private String value;