Introduces a basic CSV import module for bulk-importing account transactions.
Changes include:
- User can load a CSV
- User can configure the column mappings for a CSV
- Imported CSV shows invalid cells
- User can clean up their data directly in the UI
- User can see a preview of the import rows and confirm import
- Layout refactor + Import nav stepper
- System test stability improvements
* Added i18n for the Dashboard page.
* Add a check for blank. Empty returned an error since @accounts was nil.
* Remove subtitle when accounts are empty..
* Increased the padding-right value for the buttons. The sapce occupied by the icon made the button elements unbalanced.
* Add refactor as suggested by Zach (https://github.com/maybe-finance/maybe/pull/707#discussion_r1588506443)
* Extract empty state into a partial.
* Render new partial if no accounts exist.
* Moved translation text to shared directory.
* Fix padding-right on New account button.
* Lint fix
* i18n tasks
* Get tests passing with :test queue adapter
---------
Co-authored-by: Zach Gollwitzer <zach.gollwitzer@gmail.com>
