fix(l10n): French translations via Weblate (PR #2771)

* Translated using Weblate (French)

Currently translated at 100.0% (442 of 442 strings)

Translation: thorium reader documentation/Thorium Reader translation
Translate-URL: https://hosted.weblate.org/projects/thorium-reader-documentation/thorium-reader-translation/fr/

* Update fr.json (2-space indentation)

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Co-authored-by: Daniel Weck <daniel.weck@gmail.com>

src/resources/locales/fr.json

@@ -388,7 +388,7 @@
       "edit": "Éditer",
       "goTo": "Aller à la page",
       "landmarks": "Repères",
-      "progression": "",
+      "progression": "Progression",
       "saveMark": "Sauvegarder le marque-page",
       "search": "Rechercher",
       "searchResult": "Recherche - « {{- searchText}} »",