improved mapitem opening scaling regarding surounding contents

ex: double cartouche for superpositions

src/stores/common.js

@@ -7,6 +7,7 @@ export const CommonStore = defineStore({
   state: () => ({
     hover_elmt: null,
     map_item_ray: Math.min(window.innerWidth, window.innerHeight) * 0.08,
+    original_cartouch_width: 450,
     cartouch_width: 450,
     cartouch_is_opened: false,
     paper_symbol_definitions: {}
@@ -20,6 +21,10 @@ export const CommonStore = defineStore({
       // mode can be : terraindevie, proximite, superposition, puissancedagir, action, doleancer
       this.hover_elmt = elmt;
     },
+    setCartoucheWidth (delta) {
+      console.log('CommonStore setCartoucheWidth', delta);
+      this.cartouch_width = this.original_cartouch_width * delta; 
+    },
     setCartoucheOpened (v) {
       this.cartouch_is_opened = v;
     },