PER-9957: Add sharing options to the sharing dialog

Added a text which explains the sharing options in the sharing dialog for the user. Also updated the scss file.

Author: crisnicandrei

src/app/file-browser/components/sharing-dialog/sharing-dialog.component.html

@@ -79,6 +79,19 @@
             </option>
           </select>
         </div>
+        <div class="sharing-explanation">
+          Entering an archive name filters the available archives to share with.
+          If you cannot find the archive you are looking for, enter an email
+          address. If an account does not exist, send a share invitation email
+          to that address. If an account does exist, the default archive
+          associated with that account will be listed.
+          <a
+            [href]="
+              'https://permanent.zohodesk.com/portal/en/kb/articles/default-archives'
+            "
+            >Learn more.</a
+          >
+        </div>
         <ng-container *ngIf="!shares?.length && !pendingShares?.length">
           <div class="shares-empty">Not shared with anyone</div>
         </ng-container>

src/app/file-browser/components/sharing-dialog/sharing-dialog.component.scss

@@ -213,4 +213,8 @@ p {
 .btn:focus {
   box-shadow: none;
   border: none;
+}
+
+.sharing-explanation{
+  margin-top: 10px;
 }