Preserve install page scroll position

app/assets/js/scripts/install.js

@@ -4,6 +4,7 @@ const ConfigManager = require('./assets/js/configmanager')
 const ProfileAssetManager = require('./assets/js/profileassetmanager')
 
 const installCatalogList = document.getElementById('installCatalogList')
+const installPageShell = document.querySelector('#installContainer .launcherPageShell')
 
 let expandedProfileId = null
 
@@ -187,6 +188,7 @@ function createExpandedDetail(profile, installed){
 }
 
 async function renderInstallView(){
+    const previousScrollTop = installPageShell != null ? installPageShell.scrollTop : 0
     installCatalogList.innerHTML = ''
 
     try {
@@ -314,6 +316,12 @@ async function renderInstallView(){
         errorCard.className = 'launcherCard'
         errorCard.innerHTML = '<h3 class="launcherCardTitle">카탈로그 로드 실패</h3><p class="launcherCardDescription">관리자가 등록한 카탈로그를 읽지 못했습니다.</p>'
         installCatalogList.appendChild(errorCard)
+    } finally {
+        if(installPageShell != null){
+            requestAnimationFrame(() => {
+                installPageShell.scrollTop = previousScrollTop
+            })
+        }
     }
 }