Make Notes UI better + add light theme

[venisha-kalola]

Project slug (e.g., snake, todo)

notes

Summary

The Notes UI needs a visual overhaul and a light theme. Improvements: clearer note list, improved editor layout (title, tags, body), autosave indicator, theme-aware editor colors, and better mobile UX.

Details / Acceptance criteria

Light theme available and applied to Notes page/editor.

Note editor supports clear title, tag metadata, and large editing area with proper padding/line-height.

Autosave status indicator visible; undo/redo supported if feasible.

Notes list shows preview, last-edited timestamp, and supports search/sort.

Mobile-friendly layout for reading and editing.

Scope

• UI changes
• Logic changes
• Accessibility
• Tests (manual)

[chandra-011220]

@venisha-kalola @Hrishikesh-Dalal please assign this issue to me as a part of hacktoberfest

[shrreya19]

Hi! I’d like to work on this issue. Could you please assign it to me?