website: re-record the hero and gallery clips for the 4.8 UI

The two landing-page clips predated the v4.8.0 interface work (#11288,
#11305, #11307): the gallery clip showed the retired light-theme Install
Models table, and the hero clip toured the Nodes pages in a full browser
window while its caption promised a chat completion on CPU.

Both are re-recorded from a real local-ai built from v4.8.0, dark theme,
app chrome only:

- hero-ui.mp4: a chat completion on lfm2.5-1.2b-instruct streaming on
  CPU with the live tok/s meter, so the caption now matches the footage.
  The poster frame is regenerated from the new clip.
- gallery.mp4: the Discover rail and detail pane, the hardware
  recommendation lanes, the VRAM-by-context chart, and a real install
  with the live progress banner.

The hand-typed model count moves from 1,585 to 1,255 in the three places
it appears, matching the distinct-model count the recorded UI shows on
screen. The 3d-generation clip is untouched: the post-capture UI changes
do not show in its footage.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-fable-5

website/layouts/index.html

@@ -19,7 +19,7 @@
           <div><b class="tnum" data-count="{{ .Site.Data.stats.stars }}">0</b><span>GitHub stars</span></div>
           <div><b class="tnum" data-count="73">0</b><span>Backends</span></div>
           <div><b class="tnum" data-count="{{ len .Site.Data.engines.engines }}">0</b><span>Engines we wrote</span></div>
-          <div><b class="tnum" data-count="1585">0</b><span>Models, one click</span></div>
+          <div><b class="tnum" data-count="1255">0</b><span>Models, one click</span></div>
         </div>
       </div>
       <div class="fd">
@@ -58,7 +58,7 @@
       </div>
       <div class="duo__m rv">
         <figure class="screen" style="margin:0">
-          <figcaption class="screen__bar"><i></i> localai · model gallery <b>1,585 models</b></figcaption>
+          <figcaption class="screen__bar"><i></i> localai · model gallery <b>1,255 models</b></figcaption>
           <video src="/media/gallery.mp4" muted loop playsinline preload="none" data-lazy aria-label="Installing a model from the LocalAI gallery"></video>
         </figure>
       </div>
@@ -328,7 +328,7 @@
   <div class="shell">
     <div class="bars rv" aria-hidden="true"><i></i><i></i><i></i><i></i></div>
     <p class="kicker rv">The gallery</p>
-    <h2 class="rv mt1" style="max-width:20ch">1,585 models. No notebook, no conversion script.</h2>
+    <h2 class="rv mt1" style="max-width:20ch">1,255 models. No notebook, no conversion script.</h2>
     <div class="cards">
       <a class="cd rv" href="/docs/getting-started/models/"><p class="cd__k">Quantizations</p><h3>201 APEX builds</h3>
         <p>Every tier of every model we quantize, ranked against the hardware you actually have and installed with one click.</p><span class="cd__go">Browse the gallery →</span></a>