Fix demo app and spinner-icon bug

alfa-client/apps/demo/src/app/app.component.html

@@ -63,7 +63,7 @@
           documentName="Waffenschein_142321.pdf"
           [iconArgs]="{ type: 'pdf', isExclamation: true }"
         >
-          <ozgdesign-download-icon [onClick]="onDownloadClick"></ozgdesign-download-icon>
+          <ozgdesign-download-icon [isButton]="true" [onClick]="onDownloadClick"></ozgdesign-download-icon>
         </ozgdesign-document>
       </div>
       <hr class="mt-24" />

alfa-client/apps/demo/src/app/components/cdk-demo/custom-stepper.component.html

@@ -11,10 +11,10 @@
 
     <footer class="example-step-navigation-bar">
       <button cdkStepperPrevious>
-        <ozg-testbtn cdkStepperPrevious>zurück</ozg-testbtn>
+        <ozgdesign-testbtn cdkStepperPrevious>zurück</ozgdesign-testbtn>
       </button>
       <button cdkStepperNext>
-        <ozg-testbtn cdkStepperPrevious>weiter</ozg-testbtn>
+        <ozgdesign-testbtn cdkStepperPrevious>weiter</ozgdesign-testbtn>
       </button>
     </footer>
   </section>

alfa-client/libs/design-system/src/lib/icons/file-icon/file-icon.component.html

@@ -9,7 +9,7 @@
         d="M18.2731 2.85965H2.85642V37.1454H29.285V13.5739H18.2731V2.85965Z"
         [attr.fill]="getColorByType(type)"
       />
-      <g ozg-spinner-icon *ngIf="isLoading"></g>
+      <g ozgdesign-spinner-icon *ngIf="isLoading"></g>
       <svg *ngIf="isExclamation">
         <mask
           id="mask0_563_46411"