Rewrite folder selection. Needs better error handling still.

cista-front/src/stores/documents.ts

@@ -45,21 +45,28 @@ export const useDocumentStore = defineStore({
 
   actions: {
     setActualDocument(location: string){
-      this.loading = true;
+      location = decodeURIComponent(location)
+      this.loading = true
       let data = this.root
-      const dataMapped  = [];
-      const locations = location.split('/').slice(1)
-      // Get data target location
-      locations.forEach(location => {
-        location = decodeURIComponent(location)
-        if(data && data.dir){
-          for (const key in data.dir) {
-            if(key === location) data  = data.dir[key]
-          }
+      const actualDirArr = []
+      try {
+        // Navigate to target folder
+        for (const dirname of location.split('/').slice(1)) {
+          if (!dirname) continue
+          actualDirArr.push(dirname)
+          data = data.dir[dirname]
         }
-      })
-
+      } catch (error) {
+        console.error("Cannot show requested folder", location, actualDirArr.join('/'), error)
+      }
+      if (data.dir === undefined) {
+        // Target folder not available
+        this.document = []
+        this.loading = false  // ???
+        return
+      }
       // Transform data
+      const dataMapped  = []
       for (const [name, attr] of Object.entries(data.dir)) {
         const {id, size, mtime, dir} = attr
         const element: Document = {