Updated DatabaseManager

Removed IF NOT EXISTS for temporary table as it gave unintended results in unit tests.

helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/DatabaseManager.java

@@ -157,7 +157,7 @@ INSERT INTO charities (org_number, name, status, url, is_pre_approved)
 
 
              // Temporary table for parity check
-            sql_query = "CREATE TEMPORARY TABLE IF NOT EXISTS temp (org_number VARCHAR(100) PRIMARY KEY)";
+            sql_query = "CREATE TEMPORARY TABLE temp (org_number VARCHAR(100) PRIMARY KEY)";
                  try (PreparedStatement temp_create = conn.prepareStatement(sql_query)) {
                      temp_create.execute();
                  }