Remove deprecated html attributes (#924)

cvat/apps/engine/static/engine/stylesheet.css

@@ -475,9 +475,16 @@
     margin: 0px auto;
     border: 1px solid dimgrey;
     border-radius: 6px;
-    text-align: left;
     width: 100%;
     text-align: center;
+    border-collapse: separate;
+    border-spacing: 3px;
+}
+
+#annotationStatisticTable th, #annotationStatisticTable td { padding: 3px; }
+
+#annotationSettingsTable th, #annotationSettingsTable td {
+    padding: 20px;
 }
 
 #playerPanel {

cvat/apps/engine/templates/engine/annotation.html

@@ -163,7 +163,7 @@
                 <input class="regular h2" style="width: 3.5em;" type="number" id="frameNumber">
             </div>
             <hr>
-            <table class="regular" cellpadding="20">
+            <table id="annotationSettingsTable" class="regular">
                 <tr>
                 <td style="width: auto;">
                         <div style="float: left;"> <label class="semiBold"> Fill Opacity: </label> </div>
@@ -381,7 +381,7 @@
             </center>
             <center> <label class="semiBold h2"> Segment Statistic </label> </center>
             <div style="text-align: center; max-height: 250px; overflow: auto; display: block;">
-                <table id="annotationStatisticTable" cellspacing="3" cellpadding="3">
+                <table id="annotationStatisticTable">
                     <tr class="semiBold">
                         <td> Label </td>
                         <td colspan="2"> Boxes </td>