perf: reduce startup work and fix grade analytics bar chart animation

Batch settings storage writes, tier plugin startup, lazy-load heavy UI
chunks, and optimize global search indexing. Stop tweening bar height in
grade analytics to prevent invalid negative SVG rect values.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/seqta/utils/Closers/closeExtensionPopup.ts

@@ -1,7 +1,7 @@
 import { settingsState } from "@/seqta/utils/listeners/SettingsState";
 import { animate } from "motion";
 
-import { settingsPopup } from "@/interface/hooks/SettingsPopup";
+import { settingsPopup } from "@/seqta/utils/settingsPopup";
 
 export let SettingsClicked = false;