Switch social-share icons to Lucide v0.460.0; shrink avatar to 40x40

Lucide (https://lucide.dev) replaces the hand-rolled Tabler paths. Lucide
is more compact and consistent, and ships under the ISC license (more
permissive than Tabler's MIT and equally fine for plugin redistribution).

Lucide has no brand icons for Reddit/WhatsApp/Pinterest, so we use
generic substitutes that preserve the visual intent:
- reddit.svg   <- lucide 'share-2'  (community share metaphor)
- whatsapp.svg <- lucide 'message-circle'
- pinterest.svg<- lucide 'pin'

Avatar: shrunk to 40x40 per user testing — sizes above 41x41 were being
clipped inside the round border on this host.

assets/icons/email.svg

@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="#0073aa" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" viewBox="0 0 24 24"><path d="M3 7l9 6l9 -6"/><rect x="3" y="5" width="18" height="14" rx="2"/></svg>

assets/icons/facebook.svg

@@ -1 +1,15 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="#0073aa" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" viewBox="0 0 24 24"><path d="M7 10v-3a1 1 0 0 1 1 -1h3v-4h4v4h3a1 1 0 0 1 1 1v3h-4v10h-4v-10h-3"/></svg>
+<!-- @license lucide-static v0.460.0 - ISC -->
+<svg
+  class="lucide lucide-facebook"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M18 2h-3a5 5 0 0 0-5 5v3H7v4h3v8h4v-8h3l1-4h-4V7a1 1 0 0 1 1-1h3z" />
+</svg>

assets/icons/linkedin.svg

@@ -1 +1,17 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="#0073aa" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" viewBox="0 0 24 24"><rect x="4" y="4" width="16" height="16" rx="2"/><line x1="8" y1="11" x2="8" y2="16"/><line x1="8" y1="8" x2="8" y2="8.01"/><line x1="12" y1="16" x2="12" y2="11"/><path d="M16 16v-3a2 2 0 0 0 -4 0"/></svg>
+<!-- @license lucide-static v0.460.0 - ISC -->
+<svg
+  class="lucide lucide-linkedin"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M16 8a6 6 0 0 1 6 6v7h-4v-7a2 2 0 0 0-2-2 2 2 0 0 0-2 2v7h-4v-7a6 6 0 0 1 6-6z" />
+  <rect width="4" height="12" x="2" y="9" />
+  <circle cx="4" cy="4" r="2" />
+</svg>

assets/icons/mail.svg

@@ -0,0 +1,16 @@
+<!-- @license lucide-static v0.460.0 - ISC -->
+<svg
+  class="lucide lucide-mail"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <rect width="20" height="16" x="2" y="4" rx="2" />
+  <path d="m22 7-8.97 5.7a1.94 1.94 0 0 1-2.06 0L2 7" />
+</svg>

assets/icons/pinterest.svg

@@ -1 +1,16 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="#0073aa" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" viewBox="0 0 24 24"><circle cx="12" cy="12" r="9"/><path d="M8 17c1 -2 1.5 -4 .5 -6s-.5 -4 .5 -6"/><path d="M15 11c.667 -1 1.667 -2.333 3 -4"/></svg>
+<!-- @license lucide-static v0.460.0 - ISC -->
+<svg
+  class="lucide lucide-pin"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M12 17v5" />
+  <path d="M9 10.76a2 2 0 0 1-1.11 1.79l-1.78.9A2 2 0 0 0 5 15.24V16a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v-.76a2 2 0 0 0-1.11-1.79l-1.78-.9A2 2 0 0 1 15 10.76V7a1 1 0 0 1 1-1 2 2 0 0 0 0-4H8a2 2 0 0 0 0 4 1 1 0 0 1 1 1z" />
+</svg>

assets/icons/reddit.svg

@@ -1 +1,19 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="#0073aa" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" viewBox="0 0 24 24"><circle cx="12" cy="12" r="9"/><path d="M12 12m-6 0a6 6 0 1 0 12 0a6 6 0 1 0 -12 0"/><path d="M12 12h0"/><path d="M8.5 13c.667 .667 1.333 1 2 1s1.333 -.333 2 -1"/></svg>
+<!-- @license lucide-static v0.460.0 - ISC -->
+<svg
+  class="lucide lucide-share-2"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <circle cx="18" cy="5" r="3" />
+  <circle cx="6" cy="12" r="3" />
+  <circle cx="18" cy="19" r="3" />
+  <line x1="8.59" x2="15.42" y1="13.51" y2="17.49" />
+  <line x1="15.41" x2="8.59" y1="6.51" y2="10.49" />
+</svg>

assets/icons/twitter.svg

@@ -0,0 +1,15 @@
+<!-- @license lucide-static v0.460.0 - ISC -->
+<svg
+  class="lucide lucide-twitter"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M22 4s-.7 2.1-2 3.4c1.6 10-9.4 17.3-18 11.6 2.2.1 4.4-.6 6-2C3 15.5.5 9.6 3 5c2.2 2.6 5.6 4.1 9 4-.9-4.2 4-6.6 7-3.8 1.1 0 3-1.2 3-1.2z" />
+</svg>

assets/icons/whatsapp.svg

@@ -1 +1,15 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="#0073aa" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" viewBox="0 0 24 24"><path d="M3 21l1.65 -4.75a9 9 0 1 1 3.85 3.85z"/><path d="M9 10c1 2 3 3 5 4"/><path d="M9 13c1 1 2 2 4 3"/></svg>
+<!-- @license lucide-static v0.460.0 - ISC -->
+<svg
+  class="lucide lucide-message-circle"
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M7.9 20A9 9 0 1 0 4 16.1L2 22Z" />
+</svg>

assets/icons/x.svg

@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="#0073aa" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" viewBox="0 0 24 24"><path d="M7 4l10 16m0 -16l-10 16"/></svg>