Add cv PDF link to social icons (#3240)

Fixes issue #3243 

Add CV PDF link to social icons

- Added CV icon to social media links section
- CV appears after LinkedIn icon in the contact section
- Uses academicons CV symbol for consistent academic styling
- Links to `/assets/pdf/CV_Schirren.pdf` and opens in new tab
- Updated `_includes/social.liquid` to handle `cv_pdf` field
- Updated `_data/socials.yml` with CV configuration
- Updated `_scripts/search.liquid.js` with cv search functionality

_data/socials.yml

@@ -9,6 +9,7 @@
 # arxiv_id: # your arXiv author ID
 # blogger_url: # your blogger URL
 # bluesky_url: # your bluesky URL
+cv_pdf: /assets/pdf/example_pdf.pdf # path to your CV PDF file
 # dblp_url: # your DBLP profile url
 # discord_id: # your discord id (18-digit unique numerical identifier)
 email: you@example.com # your email address

_includes/social.liquid

@@ -10,6 +10,8 @@
       <a href="{{ social[1] }}" title="Blogger"><i class="fa-brands fa-blogger-b"></i></a>
     {% when 'bluesky_url' %}
       <a href="{{ social[1] }}" title="Bluesky"><i class="fa-brands fa-bluesky"></i></a>
+    {% when 'cv_pdf' %}
+      <a href="{{ social[1] | relative_url }}" title="CV" target="_blank"><i class="ai ai-cv"></i></a>
     {% when 'dblp_url' %}
       <a href="{{ social[1] }}" title="DBLP"><i class="ai ai-dblp"></i></a>
     {% when 'discord_id' %}

_scripts/search.liquid.js

@@ -119,6 +119,10 @@ ninja.data = [
           {%- assign social_id = "social-bluesky" -%}
           {%- assign social_title = "Bluesky" -%}
           {%- capture social_url %}"{{ social[1] }}"{% endcapture -%}
+        {%- when "cv_pdf" -%}
+          {%- assign social_id = "social-cv" -%}
+          {%- assign social_title = "CV" -%}
+          {%- capture social_url %}"{{ social[1] | relative_url }}"{% endcapture -%}
         {%- when "dblp_url" -%}
           {%- assign social_id = "social-dblp" -%}
           {%- assign social_title = "DBLP" -%}