add react-toastify for notifications and implement weather fetching functionality

frontend/package-lock.json

@@ -12,6 +12,7 @@
         "jscookie": "^1.1.0",
         "react": "^19.1.0",
         "react-dom": "^19.1.0",
+        "react-toastify": "^11.0.5",
         "toastify": "^2.0.1"
       },
       "devDependencies": {
@@ -1945,6 +1946,15 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
+    "node_modules/clsx": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/clsx/-/clsx-2.1.1.tgz",
+      "integrity": "sha512-eYm0QWBtUrBWZWG0d386OGAw16Z995PiOVo2B7bjWSbHedGl5e0ZWaq65kOGgUSNesEIDkB9ISbTg/JK9dhCZA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/color-convert": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
@@ -2997,6 +3007,19 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/react-toastify": {
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/react-toastify/-/react-toastify-11.0.5.tgz",
+      "integrity": "sha512-EpqHBGvnSTtHYhCPLxML05NLY2ZX0JURbAdNYa6BUkk+amz4wbKBQvoKQAB0ardvSarUBuY4Q4s1sluAzZwkmA==",
+      "license": "MIT",
+      "dependencies": {
+        "clsx": "^2.1.1"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19",
+        "react-dom": "^18 || ^19"
+      }
+    },
     "node_modules/resolve-from": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",