feat:find and watch location, use shadcn sonner toast for errors.

- added tailwindcss with shadcn-svelte sonner toasts
- added a location store and a geolation util to find, watch, use and
store locations and their updates
- added a LocationButton to navigate to the current location and handle
errors.
- updated the Map to use LocationButton and go to current location.

package.json

@@ -21,11 +21,14 @@
 	"devDependencies": {
 		"@eslint/compat": "^1.2.5",
 		"@eslint/js": "^9.22.0",
+		"@lucide/svelte": "^0.544.0",
 		"@oslojs/crypto": "^1.0.1",
 		"@oslojs/encoding": "^1.1.0",
 		"@sveltejs/kit": "^2.22.0",
 		"@sveltejs/vite-plugin-svelte": "^6.0.0",
+		"@tailwindcss/vite": "^4.1.13",
 		"@types/node": "^22",
+		"clsx": "^2.1.1",
 		"drizzle-kit": "^0.30.2",
 		"drizzle-orm": "^0.40.0",
 		"eslint": "^9.22.0",
@@ -33,11 +36,17 @@
 		"eslint-plugin-storybook": "^9.1.8",
 		"eslint-plugin-svelte": "^3.0.0",
 		"globals": "^16.0.0",
+		"mode-watcher": "^1.1.0",
 		"prettier": "^3.4.2",
 		"prettier-plugin-svelte": "^3.3.3",
-		"prettier-plugin-tailwindcss": "^0.6.11",
+		"prettier-plugin-tailwindcss": "^0.6.14",
 		"svelte": "^5.0.0",
 		"svelte-check": "^4.0.0",
+		"svelte-sonner": "^1.0.5",
+		"tailwind-merge": "^3.3.1",
+		"tailwind-variants": "^3.1.1",
+		"tailwindcss": "^4.1.13",
+		"tw-animate-css": "^1.4.0",
 		"typescript": "^5.0.0",
 		"typescript-eslint": "^8.20.0",
 		"vite": "^7.0.4"