Add Aкаunting accounting app template and restructure tags formatting (#305)

* Add Aкаunting accounting app template and restructure tags formatting

* Reformat tags in meta.json to improve readability and maintainability

meta.json

@@ -122,6 +122,25 @@
       "project-management"
     ]
   },
+  {
+    "id": "akaunting",
+    "name": "Akaunting",
+    "version": "latest",
+    "description": "Akaunting is a self-hosted, open-source accounting app for small businesses.",
+    "logo": "image.png",
+    "links": {
+      "github": "https://github.com/akaunting/akaunting",
+      "website": "https://akaunting.com",
+      "docs": "https://akaunting.com/docs"
+    },
+    "tags": [
+      "finance",
+      "accounting",
+      "php",
+      "mariadb",
+      "self-hosted"
+    ]
+  },
   {
     "id": "alist",
     "name": "AList",