feat: update seed files

[yksflip]

Merged the hackathon and small seeds and updated the articles to handle the new unit system. Dropped the .nl seed file, because I think it's unnecessary work to further maintain them.

resolves #16

[coveralls]

Pull Request Test Coverage Report for Build 9781782102

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 67.881%

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Totals
Change from base Build 9714447341:	0.0%
Covered Lines:	4641
Relevant Lines:	6837

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9781771328

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1688 unchanged lines in 102 files lost coverage.
• Overall coverage decreased (-24.7%) to 43.191%

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Files with Coverage Reduction	New Missed Lines	%
app/serializers/group_order_article_serializer.rb	1	80.0%
plugins/messages/app/mail_receivers/messages_mail_receiver.rb	1	20.93%
app/controllers/api/v1/configs_controller.rb	1	75.0%
app/models/bank_account.rb	1	63.16%
app/controllers/application_controller.rb	1	87.5%
app/models/invoice.rb	1	74.19%
app/models/membership.rb	1	85.71%
app/serializers/order_article_serializer.rb	1	83.33%
app/controllers/api/v1/user/users_controller.rb	1	75.0%
app/mail_receivers/bounce_mail_receiver.rb	1	44.44%

Totals
Change from base Build 9714447341:	-24.7%
Covered Lines:	2953
Relevant Lines:	6837

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9781819793

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 67.881%

---

Totals
Change from base Build 9714447341:	0.0%
Covered Lines:	4641
Relevant Lines:	6837

---

💛 - Coveralls

[lentschi]

@yksflip

Merged the hackathon and small seeds and updated the articles to handle the new unit system.

Ah - great, thanks for investing time in this! 🤩

Dropped the .nl seed file, because I think it's unnecessary work to further maintain them.

If I'm not mistaken, you've dropped the .de one too...?

I'm all for it as it makes it easier to maintain and the developers lingua franca is English anyway. But is this decision something we should discuss upstream first? (Or we just merge it and discuss it through the PR.)