[Fix] macOS app menu showing "heroic" in lowercase #5238

[MateoGonzalezLourido]

<--- Put the description here --->
related to #5238

The menu bar title ("Heroic" in bold) was already correct becau
se Electron reads CFBundleName from Info.plist, which elect
ron-builder sets from productName: Heroic in electron-builde r.yml.

However, the dropdown items ("About", "Hide", "Quit") are gener
ated by Electron using app.getName(), which returns the name field from package.json — "heroic" (lowercase, as is conv
entional for npm packages).

Fix

Added a single app.setName() call for macOS in src/backend/m ain.ts, mirroring the existing Windows fix:

if (isWindows) {
  app.setAppUserModelId('Heroic Games Launcher')
}
if (isMac) {
  app.setName('Heroic')
}

This overrides app.getName() at runtime so Electron uses the
correctly capitalized name when generating the native macOS men
u items.

Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)