fix: Rebrand project from PiPedal to OP-Pedal

Updated branding across the project:
- CMakeLists.txt: project name, description, homepage, display version
- src/PiPedalVersion.cpp: server name string
- debian/control: package name, source, homepage, description
- vite/package.json: package name
- vite/index.html: title, meta description
- vite/public/manifest.json: name, short_name, description, URLs
- UI files: AboutDialog, AppThemed, MainPage, SettingsDialog,
  UpdateDialog, WifiConfigDialog, WifiConfigSettings,
  WifiDirectConfigSettings, Tone3000Downloader, Tone3000HelpDialog,
  WindowScale

Preserved upstream copyright/attribution and legal references.

vite/src/pipedal/WifiConfigSettings.tsx

@@ -45,7 +45,7 @@ export default class WifiConfigSettings {
     wifiWarningGiven: boolean = false;
     hasPassword: boolean = false;
     valid: boolean = false;
-    hotspotName: string = "pipedal";
+    hotspotName: string = "op-pedal";
     password: string = "";
     countryCode: string = "US";
     channel: string = "0";