Fix syntax error by adding missing semicolon

Author: LKFEIYI

source/source_io/module_parameter/input_parameter.h

@@ -500,7 +500,7 @@ struct Input_para
     double p_mol = 1.85;
     double n_mol = 0.033;
     double epsilon_inf = 1.78;
-    double sol_thr = 1e-5
+    double sol_thr = 1e-5;
 
     // ==============  #Parameters (14.vdW Correction) ===========================
     // ==========================================================