updateConfigEntry: Move declaration for ESCAPED_CFGVALUE

Need to move it until after we map CFGVALUE booleans
so that ESCAPED_CFGVALUE contains the final updated
CFGVALUE.

steamtinkerlaunch

@@ -7,7 +7,7 @@
 PREFIX="/usr"
 PROGNAME="SteamTinkerLaunch"
 NICEPROGNAME="Steam Tinker Launch"
-PROGVERS="v14.0.20240324-1 (updateConfigEntry-escpae-incoming-cfgvalue)"
+PROGVERS="v14.0.20240324-2 (updateConfigEntry-escpae-incoming-cfgvalue)"
 PROGCMD="${0##*/}"
 PROGINTERNALPROTNAME="Proton-stl"
 SHOSTL="stl"
@@ -10896,7 +10896,6 @@ function createDefaultCfgs {
 function updateConfigEntry {
 	CFGCAT="$1"
 	CFGVALUE="$2"
-	ESCAPED_CFGVALUE="$( printf "%s" "$CFGVALUE" | sed 's/\\/\\\\/g' )"  # Help prevent expanding incoming config values by escaping them (i.e. when using with sed)
 	CFGFILE="$3"
 
 	if [ "$CFGCAT" == "CUSTOMCMD" ] && [ "$CFGFILE" == "$STLDEFGAMECFG" ]; then
@@ -10921,6 +10920,9 @@ function updateConfigEntry {
 					CFGVALUE=""
 				fi
 
+				# Help prevent expanding incoming config values by escaping them (i.e. when using with sed)
+				ESCAPED_CFGVALUE="$( printf "%s\n" "$CFGVALUE" | sed 's/\\/\\\\/g' )"
+
 				# only save value if it changed
 				# sed needs escaped string because otherwise it'll expand escape sequences in strings with backslashes
 				# i.e. config values with Windows paths, '\home\test' will have '\t' expanded as a tab character