[Pricing] Add option to convert received items currency (#8970)

* Add new global setting

* Convert to base currency on receipt

* Fix total price rendering in PO table

* Fix for tasks.py

* Update .gitignore

- Ignore auto-generated files

* Update docs

Improved documentation for pricing/currency support

* Updates

* Fix caching for default currency

- Now managed better by session caching

* Add unit test for new feature

* Playwright test fixes

* Validate copying of media files

* Validate media files

* Adjust playwright setup

* Allow multiple attempts to fetch release information

* Tweak unit tests

* Revert changes to .gitignore file

- Just trying stuff at this point

* Add debug msg

* Try hard-coded paths

* Remove debug prints

* Abs path for database

* More debug

* Fix typos

* Revert change to db name

* Remove debug statements (again)

* Cleanup playwright tests

* More test tweaks

---------

Co-authored-by: Matthias Mair <code@mjmair.com>

.gitignore

@@ -112,7 +112,7 @@ api.yaml
 src/backend/InvenTree/web/static
 InvenTree/web/static
 
-# Generated docs files
+# Exported interim files
 docs/schema.yml
 docs/docs/api/*.yml
 docs/docs/api/schema/*.yml