fix(i18n): add missing translations and apply translate pipes across web-app (#2934)

fix: address code review issues

fix: translate accessibility attributes and fix translation errors

src/app/shared/file-upload/file-upload.component.html

@@ -1,6 +1,11 @@
 <div class="layout-row layout-lt-md-column gap-2percent">
   <mat-form-field [ngStyle]="{ flex: '0 0 ' + (flex || '83%') }">
-    <input matInput [readonly]="true" [value]="fileName || ''" placeholder="No file selected" />
+    <input
+      matInput
+      [readonly]="true"
+      [value]="fileName || ''"
+      placeholder="{{ 'labels.text.NoFileSelected' | translate }}"
+    />
   </mat-form-field>
 
   <span class="flex-10 align-center">