Properly use system language when language is set to system language, add missing translations

translations/template.txt

@@ -278,7 +278,6 @@ Directory to save screenshots:=
 Image format:=
 
 Save screenshot in a folder based on the focused applications name=
-Save screenshot in a folder based on the focused applications name (X11 applications only)=
 
 Save screenshot to clipboard=
 Save screenshot to clipboard (Not supported properly by Wayland)=
@@ -331,6 +330,7 @@ Application:     =
 Custom...=
 
 Save video in a folder based on the focused applications name%s=
+ (X11 applications only)=
 
 Add audio track=
 Add input device=
@@ -387,6 +387,7 @@ Do not force the GPU to go into high performance mode when recording.\nMay affec
 Show %s notifications=
 Show %s status with scroll lock led=
 Recording indicator=
+recording=
 
 Simple=
 Audio track #%d=
@@ -397,6 +398,7 @@ Estimated video file size per minute (excluding audio): %.2fMB=
 # Replay settings
 Directory to save replays:=
 Replay indicator=
+replay=
 Turn on replay when starting a fullscreen application%s=
 Autostart=
 in RAM=
@@ -421,3 +423,4 @@ Stream URL:=
 Stream key:=
 Streaming info=
 Streaming indicator=
+streaming=