feat: pdf export in word processor

scripts/copy_icons.sh

@@ -24,6 +24,7 @@ ICONS=(
     "actions/symbolic/go-next-symbolic.svg"
     "actions/symbolic/go-home-symbolic.svg"
     "actions/symbolic/document-save-symbolic.svg"
+    "actions/symbolic/document-export-symbolic.svg"
     "actions/symbolic/edit-undo-symbolic.svg"
     "actions/symbolic/edit-redo-symbolic.svg"
     "actions/symbolic/format-justify-left-symbolic.svg"

scripts/install_apps.sh

@@ -22,7 +22,7 @@ APPS=(
     "wikipedia|apps/scalable/web-browser.svg"
     "imageviewer|apps/scalable/utilities-terminal.svg"
     "fontpreview|apps/scalable/utilities-terminal.svg"
-    "pdfviewer|apps/scalable/utilities-terminal.svg"
+    "pdfviewer|mimetypes/scalable/application-pdf.svg"
     "disks|apps/scalable/gparted.svg"
     "devexplorer|apps/scalable/hardware.svg"
     "installer|mimetypes/scalable/text-x-install.svg"