Fix clock string length issues (fixes #716)

Co-authored-by: Plash <plash@noreply.codeberg.org>
Signed-off-by: AnErrupTion <anerruption@disroot.org>

res/lang/en.ini

@@ -7,6 +7,7 @@ err_alloc = failed memory allocation
 err_bounds = out-of-bounds index
 err_brightness_change = failed to change brightness
 err_chdir = failed to open home folder
+err_clock_too_long = clock string too long
 err_config = unable to parse config file
 err_dgn_oob = log message
 err_domain = invalid domain