Add generic-mode URL validation and UI

Introduce a "generic_mode" option to allow validating/downloading from non-YouTube sites and wire it through the UI, config, and validation logic. Key changes:

- Add generic_mode default to ConfigManager and persist setting from DownloadSettingsDialog (checkbox + help text).
- Extend validate_video_url to accept a generic_mode flag and allow any http/https URL with a domain when enabled; pass this flag from Analysis and Download flows.
- Update YTSageApp to load/save generic_mode, update URL placeholder and settings tooltip behavior, and refresh tooltip when settings change.
- Improve robustness in FormatTableMixin: handle None/incorrect types for format_note, abr, resolution, ext, and codec values to avoid type errors and ensure consistent display.
- Add localization entries for generic mode, placeholder, and related help text across multiple language files and update the in-app default localization strings.

These changes enable broader site support via yt-dlp while hardening UI format handling and keeping user settings persistent.

ytsage/utils/ytsage_config_manager.py

@@ -71,6 +71,7 @@ class ConfigManager:
     _settings: Dict[str, Any] = {}
     _default_config: Dict[str, Any] = {
         "download_path": str(USER_HOME_DIR / "Downloads"),
+        "generic_mode": False,
         "speed_limit_value": None,
         "speed_limit_unit_index": 0,
         "cookie_source": "browser",  # "browser" or "file"

ytsage/utils/ytsage_localization.py

@@ -70,12 +70,23 @@ class LocalizationManager:
             "custom_options": "Custom Options",
             "settings": "Settings"
         },
+        "settings": {
+            "generic_mode": "Generic Mode",
+            "enable_generic_mode": "Enable Generic Mode (support non-YouTube sites)",
+            "generic_mode_help": "Allows downloading from Dailymotion, CBC Gem, and other sites supported by yt-dlp."
+        },
         "tabs": {
             "cookies": "Login with Cookies",
             "custom_command": "Custom Command", 
             "proxy": "Proxy",
             "language": "Language"
         },
+        "main_ui": {
+            "url_placeholder": "Enter YouTube video or playlist URL",
+            "url_placeholder_generic": "Enter video or playlist URL from any supported site",
+            "settings_tooltip": "Current Path: {path}\nSpeed Limit: {speed_limit}",
+            "speed_limit_none": "None"
+        },
         "language": {
             "select_language": "Select Language:",
             "current_language": "Current language: {language}",