i18n: Updates for project Deepin Desktop Environment (#400)

* [skip CI] Translate dde-dock.ts in pl

100% translated source file: 'dde-dock.ts'
on 'pl'.

* [skip CI] Translate dde-dock.ts in fi

100% translated source file: 'dde-dock.ts'
on 'fi'.

---------

Log:

Author: transifex-integration[bot]

plugins/dde-dock/translations/dde-dock_fi.ts

@@ -549,7 +549,7 @@
     </message>
     <message>
         <source>Charging protection active</source>
-        <translation type="unfinished"/>
+        <translation>Lataussuoja aktiivinen</translation>
     </message>
 </context>
 <context>

plugins/dde-dock/translations/dde-dock_pl.ts

@@ -549,7 +549,7 @@
     </message>
     <message>
         <source>Charging protection active</source>
-        <translation type="unfinished"/>
+        <translation>Ochrona ładowania jest aktywna</translation>
     </message>
 </context>
 <context>