Fix: Regime was stripping the whitespaces from header

bookie/src/app/regimes/regime-detail/regime-detail.component.html

@@ -13,7 +13,7 @@
       <div class="flex flex-row justify-around content-start items-start">
         <mat-form-field class="flex-auto">
           <mat-label>Header</mat-label>
-          <input matInput formControlName="header" />
+          <textarea matInput formControlName="header"></textarea>
         </mat-form-field>
       </div>
       <div class="flex flex-row justify-around content-start items-start">