🐛 Fix async issue when PHP Guard reset kicks in

Whenever PHP Guard is used to reset the PHP version when a different PHP
version is installed using the PHP Version Manager, it would previously
kick its version switching process off asynchronously as a separate task
which meant that the app would go into "ready" state too soon. Now this
is considered a blocking task that the app will wait for (async) before
turning the app back into its "ready" state again.

phpmon/Domain/Integrations/Homebrew/Commands/InstallAndUpgradeCommand.swift

@@ -147,7 +147,7 @@ class InstallAndUpgradeCommand: BrewCommand {
 
          // If a PHP version was active prior to running the operations, attempt to restore it
          if let version = phpGuard.currentVersion {
-             await MainMenu.shared.switchToAnyPhpVersion(version, silently: true)
+             await MainMenu.shared.switchToPhpVersionAndWait(version, silently: true)
          }
 
         // Also rebuild the content of the main menu

phpmon/Domain/Menu/MainMenu+Actions.swift

@@ -273,6 +273,30 @@ extension MainMenu {
         }
     }
 
+    func switchToPhpVersionAndWait(_ version: String, silently: Bool = false) async {
+        if silently {
+            MainMenu.shared.shouldSwitchSilently = true
+        }
+
+        if !PhpEnvironments.shared.availablePhpVersions.contains(version) {
+            Log.warn("This PHP version is currently unavailable, not switching!")
+            return
+        }
+
+        setBusyImage()
+        PhpEnvironments.shared.isBusy = true
+        PhpEnvironments.shared.delegate = self
+        PhpEnvironments.shared.delegate?.switcherDidStartSwitching(to: version)
+
+        updatePhpVersionInStatusBar()
+        rebuild()
+        await PhpEnvironments.switcher.performSwitch(to: version)
+
+        PhpEnvironments.shared.currentInstall = ActivePhpInstallation()
+        App.shared.handlePhpConfigWatcher()
+        PhpEnvironments.shared.delegate?.switcherDidCompleteSwitch(to: version)
+    }
+
     @objc func switchToPhpVersion(_ version: String) {
         setBusyImage()
         PhpEnvironments.shared.isBusy = true

phpmon/Domain/SwiftUI/PhpManager/PhpFormulaeView.swift

@@ -197,12 +197,16 @@ struct PhpFormulaeView: View {
                     self.status.description = progress.description
                     self.status.busy = progress.value != 1
 
+                    // Whenever a key step is finished, refresh the PHP versions
                     if progress.value == 1 {
-                        self.setBusyStatus(false)
                         await self.handler.refreshPhpVersions(loadOutdated: false)
                     }
                 }
             }
+            // Finally, after completing the command, also refresh PHP versions
+            await self.handler.refreshPhpVersions(loadOutdated: false)
+            // and mark the app as no longer busy
+            self.setBusyStatus(false)
         } catch let error {
             let error = error as! BrewCommandError
             let messages = error.log.suffix(2).joined(separator: "\n")