FEAT #9598 add pdf viwer embedded (only in signaturebook and view doc action v2)

package.json

...pp/actions/view-doc-action/view-doc-action.component.html

.../app/actions/view-doc-action/view-doc-action.component.ts

src/frontend/app/app-common.module.ts

src/frontend/app/header/header-left.component.scss

src/frontend/app/home.component.html

src/frontend/app/home.component.ts

src/frontend/app/signature-book.component.html

src/frontend/app/signature-book.component.ts