feat(localization): add timer conflict handling and update translations

- Introduced a new hook `useTaskTimerWithConflictCheck` to manage timer conflicts, prompting users when a timer is already running for a different task.
- Updated localization files for Albanian, German, English, Spanish, Portuguese, and Chinese to include new translation keys related to timer conflict handling and cancellation.
- Refactored components to utilize the new timer hook, enhancing user experience by preventing overlapping timers.

worklenz-frontend/src/features/navbar/navbar.tsx

@@ -153,8 +153,8 @@ const Navbar = () => {
                   <Flex align="center">
                     <SwitchTeamButton />
                     <NotificationButton />
-                    {/* <TimerButton /> */}
-                    <HelpButton />
+                    <TimerButton />
+                    {/* <HelpButton /> */}
                     <ProfileButton isOwnerOrAdmin={isOwnerOrAdmin} />
                   </Flex>
                 </Flex>