refactored timetracking to only use client-supplied times

frontend/src/Components/Menu.svelte

@@ -2,10 +2,10 @@
 import { onDestroy, onMount }       from 'svelte';
 import { useTinyRouter } from 'svelte-tiny-router';
 
-import { api }           from '../urls.svelte.js';
 import { logout, user }  from '../user.svelte.js';
 import { t }             from '../translations.svelte.js';
-import { timetrack }     from '../user.svelte.js';
+
+import TimeRecorder from './TimeRecorder.svelte';
 
 let key = $state(null);
 const router  = useTinyRouter();
@@ -30,56 +30,12 @@ function go(path){
     return false;
 }
 
-function msToTime(ms) {
-    const days = Math.floor(ms / (24 * 60 * 60 * 1000));
-    ms %= 24 * 60 * 60 * 1000;
-    const hours = Math.floor(ms / (60 * 60 * 1000));
-    ms %= 60 * 60 * 1000;
-    const minutes = Math.floor(ms / (60 * 1000));
-    ms %= 60 * 1000;
-    const seconds = Math.floor(ms / 1000);
-
-    let daysStr = days > 0 ? padTo2Digits(days) + ':' : '';
-    return `${daysStr}${padTo2Digits(hours)}:${padTo2Digits(minutes)}:${padTo2Digits(seconds)}`;
-}
-
-function padTo2Digits(num) {
-    return num.toString().padStart(2, '0');
-}
-
 async function search(e){
     e.preventDefault();
     router.navigate(`/search?key=${key}`);
     return false;
 }
 
-async function stopTrack(){
-    if (timetrack.running.id){
-        const url = api(`time/${timetrack.running.id}/stop`);
-        const res = await fetch(url,{credentials:'include'});
-        if (res.ok){
-            timetrack.running = null;
-            timetrack.elapsed = null;
-            timetrack.start   = null;
-            router.navigate('/time');
-        }
-    }
-}
-
-let interval = null;
-
-$effect(() => {
-    if (timetrack.running) {
-        console.log('effect!');
-        timetrack.start = Date.parse(timetrack.running.start_time);
-        interval = setInterval(() => { timetrack.elapsed = msToTime(Date.now() - timetrack.start); },1000);
-    } else {
-        clearInterval(interval);
-        timetrack.elapsed = null;
-        interval = null;
-    }
-});
-
 onMount(fetchModules);
 
 onDestroy(() => {
@@ -113,9 +69,5 @@ onDestroy(() => {
     {#if user.name }
     <a onclick={logout}>{t('logout')}</a>
     {/if}
-    {#if timetrack.running}
-    <span class="timetracking">{timetrack.elapsed} {timetrack.running.subject}
-        <button onclick={stopTrack} title={t('stop')} class="symbol"></button>
-    </span>
-    {/if}
+    <TimeRecorder />
 </nav>