feat: add web-extension manifest file content

src/manifest/index.js

@@ -0,0 +1,56 @@
+const pkg = require('../../package.json');
+
+const manifestInput = {
+    manifest_version: 2,
+    name: 'Sample WebExtension',
+    version: pkg.version,
+
+    icons: {
+        '16': 'assets/icons/favicon-16.png',
+        '32': 'assets/icons/favicon-32.png',
+        '48': 'assets/icons/favicon-48.png',
+        '128': 'assets/icons/favicon-128.png',
+    },
+
+    description: 'Sample description',
+    homepage_url: 'https://github.com/abhijithvijayan/web-extension-starter',
+    short_name: 'Sample Name',
+
+    permissions: ['tabs', 'storage', 'http://*/*', 'https://*/*'],
+    content_security_policy: "script-src 'self' 'unsafe-eval'; object-src 'self'",
+
+    '__chrome|firefox__author': 'abhijithvijayan',
+    __opera__developer: {
+        name: 'abhijithvijayan',
+    },
+
+    __firefox__applications: {
+        gecko: { id: '{754FB1AD-CC3B-4856-B6A0-7786F8CA9D17}' },
+    },
+
+    __chrome__minimum_chrome_version: '49',
+    __opera__minimum_opera_version: '36',
+
+    browser_action: {
+        default_popup: 'popup.html',
+        default_icon: {
+            '16': 'assets/icons/favicon-16.png',
+            '32': 'assets/icons/favicon-32.png',
+            '48': 'assets/icons/favicon-48.png',
+            '128': 'assets/icons/favicon-128.png',
+        },
+        default_title: 'tiny title',
+        '__chrome|opera__chrome_style': false,
+        __firefox__browser_style: false,
+    },
+
+    '__chrome|opera__options_page': 'options.html',
+
+    options_ui: {
+        page: 'options.html',
+        open_in_tab: true,
+        __chrome__chrome_style: false,
+    },
+};
+
+module.exports = manifestInput;