Merge pull request #2781 from nextcloud/rakekniven-patch-1

l10n: Fix grammar

app/src/main/res/values/strings.xml

@@ -213,12 +213,12 @@
     <string name="nc_call_state_with_phone">%1$s with phone</string>
     <string name="nc_call_state_with_video">%1$s with video</string>
     <string name="nc_missed_call">You missed a call from %s</string>
-    <string name="nc_call_button_content_description_pip">Open picture in picture mode</string>
+    <string name="nc_call_button_content_description_pip">Open picture-in-picture mode</string>
     <string name="nc_call_button_content_description_audio_output">Change audio output</string>
     <string name="nc_call_button_content_description_camera">Toggle camera</string>
     <string name="nc_call_button_content_description_microphone">Toggle microphone</string>
     <string name="nc_call_button_content_description_advanced">Advanced call options</string>
-    <string name="nc_call_button_content_description_hangup">Hangup</string>
+    <string name="nc_call_button_content_description_hangup">Hang up</string>
     <string name="nc_call_button_content_description_answer_voice_only">Answer as voice call only</string>
     <string name="nc_call_button_content_description_answer_video_call">Answer as video call</string>
     <string name="nc_call_button_content_description_switch_to_self_vide">Switch to self video</string>