i18n: translation updates from weblate

Co-authored-by: Amadɣas <massiin@proton.me>
Co-authored-by: CYAXXX <85353920+CYAXXX@users.noreply.github.com>
Co-authored-by: Ettore Atalan <atalanttore@googlemail.com>
Co-authored-by: Hosted Weblate <hosted@weblate.org>
Co-authored-by: Jiri Grönroos <jiri.gronroos@iki.fi>
Co-authored-by: Quentin PAGÈS <quentinantonin@free.fr>
Co-authored-by: Satakun Utama <galaxytomostore@gmail.com>
Co-authored-by: Thomas Worofsky <thomas.worofsky@gmail.com>
Co-authored-by: VandaL <vandalhj@gmail.com>
Co-authored-by: lorduskordus <lorduskordus@gmail.com>
Co-authored-by: taijuin Lee <taijuin@gmail.com>
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/cs/
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/de/
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/fi/
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/kab/
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/kmr/
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/oc/
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/pl/
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/th/
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-files/zh_Hant/
Translation: Pop OS/COSMIC Files

i18n/fi/cosmic_files.ftl

@@ -418,3 +418,6 @@ rename-confirm = Nimeä uudelleen
 checksum = { $kind }-tarkistussumma
 calculate = Laske
 error = Virhe
+search-application = Hae sovelluksen nimellä
+sidebar-label = Sivupalkin nimike
+change-sidebar-label = Muuta sivupalkin nimikettä