refactor(@angular-devkit/build-angular): update browserslist conversion to latest esbuild browsers

The conversion of browserslist targets to esbuild targets has been updated to reflect additions
to esbuild. Additional browsers are now supported and the major/minor versions have been normalized.
The later of which ensures that `.0` major versions are not misinterpreted as ranges rather than
specific versions.

Author: clydin

packages/angular_devkit/build_angular/src/utils/esbuild-targets.ts

@@ -14,10 +14,19 @@ export function transformSupportedBrowsersToTargets(supportedBrowsers: string[])
   const transformed: string[] = [];
 
   // https://esbuild.github.io/api/#target
-  const esBuildSupportedBrowsers = new Set(['safari', 'firefox', 'edge', 'chrome', 'ios', 'node']);
+  const esBuildSupportedBrowsers = new Set([
+    'chrome',
+    'edge',
+    'firefox',
+    'ie',
+    'ios',
+    'node',
+    'opera',
+    'safari',
+  ]);
 
   for (const browser of supportedBrowsers) {
-    let [browserName, version] = browser.split(' ');
+    let [browserName, version] = browser.toLowerCase().split(' ');
 
     // browserslist uses the name `ios_saf` for iOS Safari whereas esbuild uses `ios`
     if (browserName === 'ios_saf') {
@@ -33,6 +42,11 @@ export function transformSupportedBrowsersToTargets(supportedBrowsers: string[])
         // esbuild only supports numeric versions so `TP` is converted to a high number (999) since
         // a Technology Preview (TP) of Safari is assumed to support all currently known features.
         version = '999';
+      } else if (!version.includes('.')) {
+        // A lone major version is considered by esbuild to include all minor versions. However,
+        // browserslist does not and is also inconsistent in its `.0` version naming. For example,
+        // Safari 15.0 is named `safari 15` but Safari 16.0 is named `safari 16.0`.
+        version += '.0';
       }
 
       transformed.push(browserName + version);