Fix bug discovering initial language from `navigator.languages` (#207) #776

Job	Run time
Check toolchain is stable	5s
Build book	21s
Build example (csr-minimal, stable)	1m 34s
End to end tests (firefox, ubuntu-latest)	2m 13s
Build example (csr-minimal, nightly)	1m 31s
End to end tests (chrome, ubuntu-latest)	1m 44s
Build example (csr-complete, stable)	1m 30s
QA (lint)	5m 58s
Build example (csr-complete, nightly)	1m 29s
End to end tests (chrome, macos-latest)	2m 46s
QA (check-all-features)	3m 24s
End to end tests (firefox, windows-latest)	3m 54s
Build example (ssr-hydrate-actix, stable)	3m 59s
QA (build-all-features)	4m 0s
End to end tests (chrome, windows-latest)	4m 27s
Build example (ssr-hydrate-actix, nightly)	4m 9s
Build example (ssr-hydrate-axum, stable)	3m 23s
Build example (ssr-hydrate-axum, nightly)	3m 25s
Unit tests	2m 44s
Build example (system-gtk, stable)	2m 45s
Build example (system-gtk, nightly)	2m 34s
Deploy book	20s
Test leptos-fluent-macros release	28s
Release leptos-fluent-macros	0s
Release leptos-fluent	0s
Create release	0s
	58m 43s

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