[L10n] Integrate translation platform

Problem / Use Case

Glossaries, translation consistency for segments/strings across languages, partial translation updates without having to search for differences or retranslate everything, length and punctuation checks—these are just a few examples of the benefits offered by specialized localization tools.

Proposed Solution

1. Weblate (open-source, self-hostable)

Proprietary, but free for FOSS projects:

1. Crowdin[^1]
2. Transifex[^1]
3. Lokalise[^1]

[^1]: Proprietary but free for FLOSS projects.

Related Issues

#97, #508