:beetle: Fix the initial translation of 'germany' in the search bar.

[JonasGilg]

Description

When first loading the website the name of 'germany' in the search bar was not translated, because the default state of the store was initialized before translations were available. This PR fixes that.

Design Decisions

A new component was added, that initializes state at the very top level. It now checks, if the translation for the district is missing.

Checklist

I, the author of this PR checked the following requirements for good software quality:

• [x] The code is properly formatted (I ran the formatter)
• [x] The code is written with our software quality standards (I ran the linter)
• [x] The code is written using our code style
• [x] Extensive in source documentation has been added
• [ ] Unit and/or integration tests have been added
• [x] All texts have been internationalized with at least the following languages:
  • [x] English
  • [x] German
• [x] I tried addressing all new accessibility problems displayed in the console and documented if they can't be fixed
• [ ] I attached performance measurements to prevent performance degradation
• [x] I added the changes to the next release section of the changelog

I, the reviewer checked the following things:

• [x] I ran the software once and tried all new and related functionality to this PR
• [x] I looked at all new and changed lines of code and commented on possible problems
• [x] I read the added documentation and checked if it is understandable and clear
• [x] I checked the added tests for completeness
• [x] I checked the internationalized strings for spelling errors
• [ ] I checked the performance metrics for problems or unexplained degradation
• [x] I checked that the changes are noted in the changelog

[github-actions[bot]]

Unit Test Results

  1 files  ±0  13 suites  ±0   23s :stopwatch: -4s 34 tests ±0  34 :heavy_check_mark: ±0  0 :zzz: ±0  0 :x: ±0  35 runs  ±0  35 :heavy_check_mark: ±0  0 :zzz: ±0  0 :x: ±0 

Results for commit 03f1e199. ± Comparison against base commit a6438f2d.

:recycle: This comment has been updated with latest results.

[coveralls]

Pull Request Test Coverage Report for Build 5079008029

• 0 of 11 (0.0%) changed or added relevant lines in 1 file are covered.
• 8 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.6%) to 16.588%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
frontend/src/App.tsx	0	11	0.0%
<!--	Total:	0	11	0.0%	-->

Files with Coverage Reduction	New Missed Lines	%
frontend/src/util/i18n.ts	8	0%
<!--	Total:	8		-->

Totals
Change from base Build 5070838786:	-0.6%
Covered Lines:	264
Relevant Lines:	1250

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💛 - Coveralls