Date Fixes, Translations, Misc Bugs (#840)

* Translated using Weblate (Spanish)

Currently translated at 100.0% (956 of 956 strings)

Translation: AdventureLog/Web App
Translate-URL: https://hosted.weblate.org/projects/adventurelog/web-app/es/

* Added translation using Weblate (English (United States))

* Translated using Weblate (Norwegian Bokmål)

Currently translated at 100.0% (956 of 956 strings)

Translation: AdventureLog/Web App
Translate-URL: https://hosted.weblate.org/projects/adventurelog/web-app/nb_NO/

* Remove empty English (United States) locale file

* Translated using Weblate (Spanish)

Currently translated at 100.0% (956 of 956 strings)

Translation: AdventureLog/Web App
Translate-URL: https://hosted.weblate.org/projects/adventurelog/web-app/es/

* [BUG]Ordered Itinerary includes visits that are outside itinerary date range
Fixes #746

* [BUG] Server Error (500) when trying to access the API docs
Fixes #712

* [BUG] Single day Collections will think location visits are out of date range
Fixes #827

* Fixes #654

* Translated using Weblate (Spanish)

Currently translated at 100.0% (956 of 956 strings)

Translation: AdventureLog/Web App
Translate-URL: https://hosted.weblate.org/projects/adventurelog/web-app/es/

* Added Slovak translations (#815)

* Created sk.json

* Update Navbar.svelte

* Update +layout.svelte

---------

Co-authored-by: Sean Morley <98704938+seanmorley15@users.noreply.github.com>

* Implement code changes to enhance functionality and improve performance

---------

Co-authored-by: Nikolai Eidsheim <nikolai.eidsheim@gmail.com>
Co-authored-by: Sergio <garcia.sergio@me.com>
Co-authored-by: fantastron27 <fantastron27@gmail.com>

frontend/src/locales/ja.json

@@ -422,7 +422,9 @@
     "recorded_sessions": "録音されたセッション",
     "total_activities": "総アクティビティ",
     "total_climbed": "総登り",
-    "total_distance": "総距離"
+    "total_distance": "総距離",
+    "dates_not_saved": "まだ追加されていません",
+    "dates_not_saved_description": "[訪問の追加]をクリックして保存します"
   },
   "auth": {
     "confirm_password": "パスワードを認証する",