fix: dev: factorize some literals in a variable !minor

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

bin/compose

@@ -748,14 +748,16 @@ set_os() {
                 {~,"$WIN_HOME"}/.compose.conf
             )
 
+            APPDATA_BASE="$WIN_HOME/AppData/Local/Compose"
+
             COMPOSE_LAUNCHER_APP_DIR="$WIN_PROGRAM_FILES/Compose"
-            COMPOSE_LOCAL_ROOT=${COMPOSE_LOCAL_ROOT:-"$WIN_HOME/AppData/Local/Compose/Launcher"}
+            COMPOSE_LOCAL_ROOT=${COMPOSE_LOCAL_ROOT:-"$APPDATA_BASE/Launcher"}
 
-            COMPOSE_VAR=${COMPOSE_VAR:-"$WIN_HOME/AppData/Local/Compose/lib"}
-            COMPOSE_CACHE=${COMPOSE_CACHE:-"$WIN_HOME/AppData/Local/Compose/cache"}
+            COMPOSE_VAR=${COMPOSE_VAR:-"$APPDATA_BASE/lib"}
+            COMPOSE_CACHE=${COMPOSE_CACHE:-"$APPDATA_BASE/cache"}
 
-            DATASTORE=${DATASTORE:-"$WIN_HOME/AppData/Local/Compose/data"}
-            CONFIGSTORE=${CONFIGSTORE:-"$WIN_HOME/AppData/Local/Compose/config"}
+            DATASTORE=${DATASTORE:-"$APPDATA_BASE/data"}
+            CONFIGSTORE=${CONFIGSTORE:-"$APPDATA_BASE/config"}
 
             mkdir -p "$COMPOSE_VAR" "$COMPOSE_CACHE" "$DATASTORE" "$CONFIGSTORE" || return 1
             SESSION_DIR=${SESSION_DIR:-"$COMPOSE_LOCAL_ROOT"/sessions}