Minor UI cleanups started porting selects from bootstrap-select to select2

dashboard.php

@@ -83,8 +83,8 @@ $total_recurring_invoice_amount = $row['total_recurring_invoice_amount'];
 
 ?>
 
-<form>
-  <select onchange="this.form.submit()" class="form-control selectpicker mb-3" name="year">
+<form class="mb-3">
+  <select onchange="this.form.submit()" class="form-control" name="year">
     <?php 
             
     while($row = mysqli_fetch_array($sql_payment_years)){
@@ -99,6 +99,7 @@ $total_recurring_invoice_amount = $row['total_recurring_invoice_amount'];
   </select>
 </form>
 
+
 <!-- Icon Cards-->
 <div class="row">
   <div class="col-lg-3 col-6">