feat: removes old link-config script, rename a few things in dev-env script, more cleanup.

env/.local/scripts/install-webapp

@@ -100,6 +100,9 @@ MIME_TYPES=$mime_types[-1]
 
 # Refer to local icon or fetch remotely from URL
 ICON_DIR="$HOME/.local/share/applications/icons"
+# Ensure the icon directory exists (useful if it's the first run.)
+[ ! -d $ICON_DIR ] && mkdir -p $ICON_DIR
+
 if [[ $ICON_REF == https://* ]]; then
   ICON_PATH="$ICON_DIR/$APP_NAME.png"
   if curl -sL -o "$ICON_PATH" "$ICON_REF"; then
@@ -121,7 +124,7 @@ fi
 if [[ -n $CUSTOM_EXEC ]]; then
   EXEC_COMMAND="$CUSTOM_EXEC"
 else
-  EXEC_COMMAND="$HOME/.local/scripts/launch-webapp $APP_URL"
+  EXEC_COMMAND="${SCRIPTS:-$HOME/.local/scripts}/launch-webapp $APP_URL"
 fi
 
 # Create application .desktop file