Take only the dimension of the first frame of a gif

stpkg

@@ -160,13 +160,13 @@ validate_homeserv() {
 }
 
 file_get_width() {
-    local WIDTH=$(identify -format "%w" "$1") >/dev/null
+    local WIDTH=$(identify -format "%w" "$1[0]") >/dev/null
     local WIDTH=$(( $WIDTH  > 256 ? 256 : $WIDTH ))
     echo "$WIDTH"
 }
 
 file_get_height() {
-    local HEIGHT=$(identify -format "%h" "$1") >/dev/null
+    local HEIGHT=$(identify -format "%h" "$1[0]") >/dev/null
     local HEIGHT=$(( $HEIGHT > 256 ? 256 : $HEIGHT ))
     echo "$HEIGHT"
 }