feat: add logo image and RTL support styles

- Added logo image to assets.
- Implemented RTL support styles in rtlSupport.scss for various components including breadcrumb, datatable, and tree node toggle button.

chore: configure environment files for production, staging, and development

- Created environment.prod.ts for production settings.
- Created environment.staging.ts for staging settings.
- Created environment.ts for local development settings.

feat: define custom theme preset

- Added presets.ts to define a custom theme preset using PrimeUIX with specific component styles and semantic colors.

chore: set up proxy configuration for local development

src/app/shared/components/breadcrumb.component.html

@@ -0,0 +1,6 @@
+<p-breadcrumb [model]="items"></p-breadcrumb>
+<div class="absolute left-0 inset-y-0">
+  <div class="me-4 flex items-center justify-center h-full">
+    <i class="pi pi-question-circle" pTooltip="محتوای آموزشی" tooltipPosition="bottom"></i>
+  </div>
+</div>