Changes

• Improved how preferences are applied: Now, if you change any setting, it will not reload the whole app and works for languages too without restarting the app.
• Fixed duplicate saved locations.
• Fixed translations (#207).
• Added Serbian language.
• Fixed widgets (hopefully! :)
• Added missing strings.
• Removed the option to switch to the system font.
• Added font options to choose from.
• Added CM unit for precipitation.
• Improved how locations load on startup.
• Added caching for language status.
• Added options to toggle alerts on or off.
• Removed "Outfit" as a font.
• Removed 486KB of garbage code.