A number of minor cleanups to the recent changes to the query tool.

web/pgadmin/tools/sqleditor/static/css/sqleditor.css

@@ -462,7 +462,11 @@ input.editor-checkbox:focus {
 
 .slick-cell span[data-cell-type="row-header-selector"] {
   display: block;
-  text-align: right;
+  text-align: center;
+}
+
+.slick-cell.selected span[data-cell-type="row-header-selector"] {
+  color: white;
 }
 
 #datagrid div.slick-header.ui-state-default {
@@ -486,9 +490,12 @@ input.editor-checkbox:focus {
 
 .select-all-icon {
   margin-left: 9px;
-  margin-right: 9px;
+  margin-right: 4px;
   vertical-align: bottom;
-  float: right;
+  position: absolute;
+  bottom: 4px;
+  right: 0;
+}
 }
 
 .slick-cell, .slick-headerrow-column {

web/pgadmin/tools/sqleditor/templates/sqleditor/js/sqleditor.js

@@ -3003,7 +3003,8 @@ define([
               });
               dataView.endUpdate();
               grid.updateRowCount();
-              grid.render();
+              // Pasted row/s always append so bring last row in view port.
+              grid.scrollRowIntoView(dataView.getLength());
               grid.setSelectedRows([]);
             }
         },