feat: complete UI redesign — client creation tabs, footer, home page, CIF & occupation fields

- Client creation: replaced vertical stepper with 3-tab layout (General, KYC & Nominee, Preview)
- All form fields redesigned with appearance="outline" and section grouping
- Preview tab with profile card, info tables, KYC details, family members
- Footer redesigned: security bar, LincShield certifications, regulatory & legal, quick navigation, support & contact, LincPay branding
- Home page redesigned: welcome banner, quick action cards, info row
- Client view header redesigned: ID chips row (Account No, CIF Number, External Id), 4-column details grid
- Added CIF Number column to clients list table
- Added CIF Number display to client view sidebar and personal data tab
- Added occupationCategoryId and occupationId dropdowns to client creation form
- Added occupation fields to client view sidebar, personal data tab, and preview
- Added 51+ missing translation keys to en-US.json
- Toolbar: added Last login chip
- Registered faUserPlus icon

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/app/clients/client-stepper/client-kyc-step/client-kyc-step.component.ts

@@ -11,7 +11,7 @@ import { Component, inject } from '@angular/core';
 import { UntypedFormBuilder, UntypedFormGroup, Validators } from '@angular/forms';
 
 /** Custom Imports */
-import { MatStepperPrevious, MatStepperNext } from '@angular/material/stepper';
+
 import { MatDivider } from '@angular/material/divider';
 import { MatIcon } from '@angular/material/icon';
 import { FaIconComponent } from '@fortawesome/angular-fontawesome';
@@ -29,8 +29,6 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   styleUrls: ['./client-kyc-step.component.scss'],
   imports: [
     ...STANDALONE_SHARED_IMPORTS,
-    MatStepperPrevious,
-    MatStepperNext,
     MatDivider,
     MatIcon,
     FaIconComponent