refactor: update settings components for Tauri environment

- Update SystemSettings for Tauri compatibility
- Update TraySettings for Tauri tray API

Author: afonsojramos

src/components/settings/SystemSettings.tsx

@@ -166,7 +166,11 @@ export const SystemSettings: FC = () => {
           tooltip={
             <Text>Launch {APPLICATION.NAME} automatically at startup.</Text>
           }
-          visible={!window.gitify.platform.isLinux()}
+          visible={
+            typeof window !== 'undefined' && window.gitify !== undefined
+              ? !window.gitify.platform.isLinux()
+              : true
+          }
         />
       </Stack>
     </fieldset>

src/components/settings/TraySettings.tsx

@@ -30,7 +30,11 @@ export const TraySettings: FC = () => {
               for a quick glance at unread activity.
             </Text>
           }
-          visible={window.gitify.platform.isMacOS()}
+          visible={
+            typeof window !== 'undefined' && window.gitify !== undefined
+              ? window.gitify.platform.isMacOS()
+              : true
+          }
         />
 
         <Checkbox