Deployed the page to Github Pages.

node_modules/@angular/fire/schematics/update/index.js

@@ -0,0 +1,7 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ngPostUpdate = void 0;
+const ngPostUpdate = () => (host, context) => {
+    return host;
+};
+exports.ngPostUpdate = ngPostUpdate;

node_modules/@angular/fire/schematics/update/v7/index.js

@@ -0,0 +1,67 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ngUpdate = void 0;
+const schematics_1 = require("@angular-devkit/schematics");
+const tasks_1 = require("@angular-devkit/schematics/tasks");
+const common_1 = require("../../common");
+const versions_json_1 = require("../../versions.json");
+const path_1 = require("path");
+const IMPORT_REGEX = /(?<key>import|export)\s+(?:(?<alias>[\w,{}\s\*]+)\s+from)?\s*(?:(?<quote>["'])?(?<ref>[@\w\s\\\/.-]+)\3?)\s*(?<term>[;\n])/g;
+const ngUpdate = () => (host, context) => {
+    const packageJson = host.exists('package.json') && common_1.safeReadJSON('package.json', host);
+    if (packageJson === undefined) {
+        throw new schematics_1.SchematicsException('Could not locate package.json');
+    }
+    Object.keys(versions_json_1.peerDependencies).forEach(depName => {
+        const dep = versions_json_1.peerDependencies[depName];
+        if (dep) {
+            packageJson[dep.dev ? 'devDependencies' : 'dependencies'][depName] = dep.version;
+        }
+    });
+    Object.keys(versions_json_1.firebaseFunctionsDependencies).forEach(depName => {
+        const dep = versions_json_1.firebaseFunctionsDependencies[depName];
+        if (dep.dev && packageJson.devDependencies[depName]) {
+            packageJson.devDependencies[depName] = dep.version;
+        }
+        else if (packageJson.dependencies[depName]) {
+            packageJson.dependencies[depName] = dep.version;
+        }
+    });
+    common_1.overwriteIfExists(host, 'package.json', common_1.stringifyFormatted(packageJson));
+    context.addTask(new tasks_1.NodePackageInstallTask());
+    const angularJson = host.exists('angular.json') && common_1.safeReadJSON('angular.json', host);
+    if (packageJson === undefined) {
+        throw new schematics_1.SchematicsException('Could not locate angular.json');
+    }
+    const srcRoots = Object.values(angularJson.projects).map((it) => path_1.join(...['/', it.root, it.sourceRoot].filter(it => !!it)));
+    host.visit(filePath => {
+        var _a;
+        if (!filePath.endsWith('.ts') ||
+            filePath.endsWith('.d.ts') ||
+            !srcRoots.find(root => filePath.startsWith(root))) {
+            return;
+        }
+        const content = (_a = host.read(filePath)) === null || _a === void 0 ? void 0 : _a.toString();
+        if (!content) {
+            return;
+        }
+        const newContent = content.replace(IMPORT_REGEX, (substring, ...args) => {
+            const { alias, key, ref, quote, term } = args.pop();
+            if (ref.startsWith('@angular/fire') && !ref.startsWith('@angular/fire/compat')) {
+                return `${key} ${alias} from ${quote}${ref.replace('@angular/fire', '@angular/fire/compat')}${quote}${term}`;
+            }
+            if (ref.startsWith('firebase') && !ref.startsWith('firebase/compat')) {
+                return `${key} ${alias} from ${quote}${ref.replace('firebase', 'firebase/compat')}${quote}${term}`;
+            }
+            if (ref.startsWith('@firebase')) {
+                return `${key} ${alias} from ${quote}${ref.replace('@firebase', 'firebase')}${quote}${term}`;
+            }
+            return substring;
+        });
+        if (content !== newContent) {
+            common_1.overwriteIfExists(host, filePath, newContent);
+        }
+    });
+    return host;
+};
+exports.ngUpdate = ngUpdate;