Remove most capital inconsistencies across languages and update guidelines

[axelboc]

Fix #416 - FYI, I'll open separate issues to deal with the remaining inconsistencies that I have decided not to fix in this PR, namely Sri Lanka, Kiribati, Northern Cyprus and European Union.

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First off, I update the capital field guidelines as per #416 (comment), to make English Wikipedia the source of truth for capitals in all languages (except for spelling and alternative names, of course).

Then, I fix the following inconsistencies in separate commits:

[DE] Move alternative spelling of capital of Burkina Faso to capital info field

• "Ouagadougou (Wagadugu)" becomes "Ouagadougou".
• The country info field now contains "Auch Wagadugu".

[ES] Remove honorary capital of Montenegro

• "Podgorica, Cetiña" becomes "Podgorica".
• I remove Podgorica from the capital info field, and reword the sentence about "Cetiña" very slightly ("una capital" instead of "la capital") for consistency with other languages. @josealberto4444

[FR] Change capital of Palau

• Fixes [FR] Melekeok vs Ngerulmud as capital of Palau #342 - the new guidelines allow us to follow @MaloMn's initial suggestion of switching from "Melekeok" to "Ngerulmud" for cross-language consistency.

[NL] Re-order capitals of South Africa

• Pretoria was listed second, which was inconsistent with other languages and also with Dutch Wikipedia: https://nl.wikipedia.org/wiki/Zuid-Afrika

[NB] Rename capital of Kazakhstan

• "Astana" becomes "Nursultan".
• Since this can be considered an alternative name, the change is not justified by the new guidelines but by the fact that SNL is now the main translation source for Norwegian (cf. Update Norwegian contribution guidelines #422): https://snl.no/Kasakhstan

[NB] Remove alternative name for capital of Finland

• "Helsingfors (Helsinki)" becomes "Helsingfors".
• I also reword the capital info slightly, so the spelling "Helsinki" doesn't appear out of the blue. @Vages

[NB] Remove parens in capitals of Chile and Colombia

• "Santiago (de Chile)" becomes "Santiago de Chile".
• "(Santa Fe de) Bogotá" becomes "Bogotá".
• This matches the capital names given on SNL: https://snl.no/Chile, https://snl.no/Colombia

[NB] Remove alternative capital of Tuvalu

• "Vaiaku/Funafuti" becomes "Funafuti".
• This change can be justified by both the new guidelines and by SNL now being the main translation source: https://snl.no/Tuvalu
• I've removed the capital info completely as I no longer think it's relevant.

[josealberto4444]

I think the sentence looks good in Spanish like that, thank you!

However, maybe we should consider following other capital info formulations and write "While Podgorica is the official capital, Cetinje is the honorary capital". For me, it's strange showing an official capital in the capital field and talking about other capital without the usual context found in other cards. Should I open an issue instead of discussing this here?

[axelboc]

Should I open an issue instead of discussing this here?

Yeah, might be easier 👍

[aplaice]

This looks fantastic!

Other than two formatting nitpicks (we no longer have a composer index to keep us on our toes...) and a suggested change to the Norwegian Kazakhstan capital info, I have nothing to add.

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Pretoria was listed second, which was inconsistent with other languages and also with Dutch Wikipedia: https://nl.wikipedia.org/wiki/Zuid-Afrika

Interestingly, the capital info already had them in the "consistent" order.

[MaloMn]

Looks incredible! Thanks!

[axelboc]

Nice, thanks a lot! 🎣