Implement tax handling for branches by adding tax percent to regions, updating product sell costs, and enhancing UI for tax summaries in BranchView

frontend/src/i18n/locales/en/falukant.json

@@ -172,6 +172,26 @@
                 "four_horse_carriage": "Four-horse carriage",
                 "raft": "Raft",
                 "sailing_ship": "Sailing ship"
+            },
+            "tabs": {
+                "director": "Director",
+                "inventory": "Inventory",
+                "production": "Production",
+                "storage": "Storage",
+                "transport": "Transport",
+                "taxes": "Taxes"
+            }
+            ,"taxes": {
+                "title": "Taxes",
+                "loading": "Loading tax data...",
+                "loadingError": "Failed to load tax data: {error}",
+                "retry": "Retry",
+                "noData": "No tax data available",
+                "total": "Total tax",
+                "table": {
+                    "region": "Region",
+                    "taxPercent": "Tax %"
+                }
             }
         },
         "nobility": {
@@ -270,6 +290,16 @@
                 "details": {
                     "title": "Child Details"
                 }
+            ,
+            "taxes": {
+                "title": "Taxes",
+                "loading": "Loading tax data...",
+                "total": "Total tax",
+                "table": {
+                    "region": "Region",
+                    "taxPercent": "Tax %"
+                }
+            }
             }
         }
     }