fix: bring back margin 20px to table

Author: veenoise

src/app/pages/mapping/mapping.component.css

@@ -21,6 +21,10 @@
   min-width: 140px;
 }
 
+.matrix-table {
+  margin: 20px;
+}
+
 .mat-table-container {
   margin: 20px;
   overflow-x: auto;

src/app/pages/mapping/mapping.component.html

@@ -32,7 +32,7 @@
   </div>
 
   <div class="mat-table-container">
-    <table mat-table matSort [dataSource]="dataSource" class="mat-elevation-z8">
+    <table mat-table matSort [dataSource]="dataSource" class="mat-elevation-z8 matrix-table">
       <ng-container matColumnDef="dimension">
         <th mat-header-cell mat-sort-header *matHeaderCellDef>Dimension</th>
         <td mat-cell *matCellDef="let element">{{ element.dimension }}</td>