[FEATURE] Adjustable icon spacing for tablet layout in Lawnchair 15 Beta 3

I am using Lawnchair 15 Beta 3 on a Xiaomi tablet (HyperOS 3). The icon spacing on the home screen is too loose for large tablet displays. Current issues: 1. Too much empty space between icons - Even with many icons placed, the home screen looks sparse and wastes screen real estate. 2. Widgets don't align well - When placing widgets (e.g., 2×2 or 4×2 sizes), the fixed spacing creates awkward gaps around them. 3. Can't create dense layouts - I want to fit more content on one screen, but the fixed spacing prevents compact arrangements. Please add an option to manually adjust the spacing between home screen icons: - Horizontal icon spacing - Gap between icons in the same row - Vertical icon spacing - Gap between icons in the same column - Or a unified "Icon spacing" slider (Compact / Default / Relaxed) Suggested location: Settings → Desktop → Grid → Icon spacing Device: Xiaomi Pad (HyperOS 3, Android 16) Lawnchair version: 15 Beta 3 Screen: 2560x1660 <!-- Failed to upload "Screenshot_2026-06-28-10-13-55-572_app.lawnchair.jpg" --> <!-- Failed to upload "Screenshot_2026-06-28-10-13-49-360_app.lawnchair.jpg" -->