Fix CRM Dashboard & UI Improve Visual Consistency. Requirements: Fix inconsistent spacing, padding, and margins across the entire page. Align all sections to a consistent grid with equal gutters. Make the top KPI cards uniform in height, spacing, and typography. Improve the Kanban board layout: Equal column widths, Consistent card-header spacing, Proper empty-state styling, Better responsiveness. Refine the left sidebar: Better spacing between filters, Consistent control heights, Search bar and buttons aligned properly. Redesign the 'Create Lead' panel: Improve field alignment and grouping, Consistent input widths and heights, Reduce visual clutter, Proper form section headings, Align the Save button with the panel header. Standardize typography: Consistent heading hierarchy, Label sizes, Font weights, Text colors. Improve color consistency and contrast while keeping the existing design language. Ensure all buttons, inputs, dropdowns, and cards share consistent border radius, borders, shadows, and focus-states. Eliminate overflow, uneven whitespace, and awkward empty areas. Make the page fully responsive across desktop, tablet, and mobile without breaking the Kanban workflow. Preserve all existing functionality and interactions - this is a visual/UI refactor only. Acceptance Criteria: Clean, modern, production-ready appearance. Consistent spacing and alignment throughout the interface. Responsive layout with no overlapping or clipped elements. Unified visual design across all system components. Improved usability without changing application behavior.