preserve installed apps during launcher updates

src/renderer/src/assets/main.css

@@ -713,6 +713,12 @@ body,
   gap: 10px;
 }
 
+.login-version-wrap .version-label,
+.login-version-wrap .launcher-update-text {
+  height: 18px;
+  line-height: 18px;
+}
+
 .app-version-wrap {
   position: absolute;
   right: 24px;
@@ -730,8 +736,10 @@ body,
 }
 
 .launcher-update-text {
+  appearance: none;
   display: inline-flex;
   align-items: center;
+  justify-content: center;
   height: 16px;
   padding: 0;
   border: 0;