Website: Workspace ONE no longer supports on-prem (EOL 2027) (#46490)

- Update homepage.ejs

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## Summary by CodeRabbit

* **Style**
* Updated the "Cloud or self-host" comparison on the homepage: the
Omnissa (WS1) option now shows a red "x" icon instead of the phrase
"On‑prem discouraged" in both desktop and mobile tables for clearer,
more consistent visuals.

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Co-authored-by: Eric <eashaw@sailsjs.com>

website/views/pages/homepage.ejs

@@ -322,7 +322,7 @@
                 <p>On-prem only</p>
               </div>
               <div purpose="comparison-column" v-else-if="comparisonModeForIt === 'omnissa'">
-                <p>On-prem discouraged</p>
+                <img class="mx-auto" alt="❌" purpose="red-x" src="/images/icon-emoji-x-12x12@2x.png">
               </div>
               <div purpose="comparison-column" v-else>
                 <img class="mx-auto" alt="checkmark" purpose="checkmark" src="/images/icon-checkmark-green-16x16@2x.png">
@@ -519,7 +519,7 @@
                 <p>On-prem only</p>
               </div>
               <div purpose="feature-status" v-else-if="comparisonModeForIt === 'omnissa'">
-                <p>On-prem discouraged</p>
+                <img class="mx-auto" alt="❌" purpose="red-x" src="/images/icon-emoji-x-12x12@2x.png">
               </div>
               <div purpose="feature-status" v-else>
                 <img class="mx-auto" alt="checkmark" purpose="checkmark" src="/images/icon-checkmark-green-16x16@2x.png">