refactor(plugin): modernize plugin architecture and improve type definitions

- Update package.json with modern build tooling and dependencies
- Streamline and enhance TypeScript definitions for better type safety
- Reorganize plugin structure for better maintainability
- Add comprehensive interface definitions for notification features
- Implement proper build configuration with rollup
- Update tsconfig.json for stricter type checking and ES2020 modules

Breaking Changes:
- Changed module structure to use ES modules
- Updated interface definitions with stricter typing
- Removed redundant notification options
- Simplified API surface while maintaining core functionality

Dependencies:
- Upgrade @capacitor dependencies to v5.7.8
- Add rollup and typescript build tools
- Update test framework configuration

tsconfig.json

@@ -1,16 +1,25 @@
 {
   "compilerOptions": {
-    "target": "es2017",
-    "module": "commonjs",
-    "lib": ["es2017", "dom"],
+    "allowUnreachableCode": false,
+    "allowUnusedLabels": false,
     "declaration": true,
-    "outDir": "./dist",
-    "strict": true,
     "esModuleInterop": true,
-    "skipLibCheck": true,
     "forceConsistentCasingInFileNames": true,
-    "types": ["node", "jest"]
+    "lib": ["dom", "es2017"],
+    "module": "es2020",
+    "moduleResolution": "node",
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitAny": true,
+    "noImplicitReturns": true,
+    "noImplicitThis": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "outDir": "dist/esm",
+    "rootDir": "src",
+    "strict": true,
+    "target": "es2017",
+    "skipLibCheck": true
   },
-  "include": ["src/**/*", "tests/**/*"],
-  "exclude": ["node_modules", "dist"]
+  "include": ["src"],
+  "exclude": ["node_modules", "dist", "**/*.spec.ts"]
 }