Bug 32193: Reindent item details template

Bug 32193: Reindent item details template

This patch performs general template cleanup to the lists template:
Make indentation consistent, replace tabs with spaces, and trim trailing
whitespace.

To test, apply the patch and confirm that the layout of the page is
unchanged. Test the various operations on the page:

- Setting lost status
- Setting damaged status
- Setting withdrawn status
- Setting local holds priority status
- Adding a public or non-public note

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>