[scripts] fix: error codes

dmenuopen: don't return 0 in case of actual errors
switch-colors: no need to exit 0 if everything went well

.local/bin/dmenuopen

@@ -13,15 +13,12 @@
 filetypes="pdf png jpg txt mom tex mkv" # could be augmented
 filetype=$(printf "$filetypes" | sed "s| |\n|g" | dmenu -i -p "type of the file?")
 
-if [ -z "$filetype" ]; then
-	exit 0
-fi
+[ -z "$filetype" ] && exit 1
+
 
 file=$(find $HOME/{documents,downloads} -type f -path "*.$filetype" | dmenu -i -l 20 -p "open")
 
-if [ -z "$file" ]; then
-	exit 0
-fi
+[ -z "$file" ] && exit 2
 
 case "$filetype" in
 	pdf) zathura "$file" ;;

.local/bin/switch-colors

@@ -46,5 +46,3 @@ else
                 switch_scheme
         fi
 fi
-
-exit 0