UX: revert to emoji card backs (#30)

didn't get permission to use the classic solitaire images, so I switched
to some retro emoji!

<img width="717" height="219" alt="image"
src="https://github.com/user-attachments/assets/4c95da4f-dbbb-4bcb-8f4b-2e13ed287320"
/>

assets/javascripts/discourse/components/reports/top-words/word-card.gjs

@@ -4,14 +4,15 @@ import { action } from "@ember/object";
 import didInsert from "@ember/render-modifiers/modifiers/did-insert";
 import { htmlSafe } from "@ember/template";
 import concatClass from "discourse/helpers/concat-class";
+import emoji from "discourse/helpers/emoji";
 import discourseLater from "discourse/lib/later";
 
 const MYSTERY_EMOJIS = [
-  "mag", // 🔍
-  "question", // ❓
-  "8ball", // 🎱
-  "crystal_ball", // 🔮
-  "crescent_moon", // 🌙
+  "floppy_disk",
+  "videocassette",
+  "computer_disk",
+  "pager",
+  "fax",
 ];
 
 const BACKGROUND_COLORS = [
@@ -80,12 +81,21 @@ export default class WordCard extends Component {
         "rewind-card__wrapper"
         (if this.longWord "-long-word")
       }}
+      style={{this.cardStyle}}
       {{didInsert this.registerCardContainer}}
       role="button"
     >
       <div class="rewind-card__inner">
         <div class="rewind-card -front">
-
+          <span class="rewind-card__image tl">{{emoji
+              this.mysteryData.emoji
+            }}</span>
+          <span class="rewind-card__image cr">{{emoji
+              this.mysteryData.emoji
+            }}</span>
+          <span class="rewind-card__image br">{{emoji
+              this.mysteryData.emoji
+            }}</span>
         </div>
         <div class="rewind-card -back">
           <span class="rewind-card__title">{{@word}}</span>

assets/stylesheets/common/top-words.scss

@@ -85,44 +85,9 @@
     height: 125px;
   }
 
-  &:nth-child(1) {
-    .-front {
-      background-image: url("/plugins/discourse-rewind/images/cards/01-robot.gif");
-    }
-  }
-
-  &:nth-child(2) {
-    .-front {
-      background-image: url("/plugins/discourse-rewind/images/cards/07-beach.gif");
-    }
-  }
-
-  &:nth-child(3) {
-    .-front {
-      background-image: url("/plugins/discourse-rewind/images/cards/02-castle.gif");
-    }
-  }
-
-  &:nth-child(4) {
-    .-front {
-      background-image: url("/plugins/discourse-rewind/images/cards/06-nature.gif");
-    }
-  }
-
-  &:nth-child(5) {
-    .-front {
-      background-image: url("/plugins/discourse-rewind/images/cards/04-hand.gif");
-    }
-  }
-
   .rewind-card {
     box-shadow: 0 0 0 4px rgb(var(--mystery-color-light), 1);
     border: none;
-
-    @if is-dark-color-scheme() {
-      background-color: var(--primary-200);
-      box-shadow: 0 0 0 4px rgb(var(--mystery-color-dark), 1);
-    }
   }
 
   .rewind-card__inner {
@@ -164,9 +129,31 @@
     }
   }
 
+  .rewind-card.-front {
+    padding: 0.5em;
+    display: grid;
+    grid-template:
+      "tl .  . " 1fr
+      ".  .  . " 1fr
+      ".  cr . " 3fr
+      ".  .  . " 1fr
+      ".  .  br" 1fr
+      / 1fr 3fr 1fr;
+    background:
+      radial-gradient(
+          circle at 4px 4px,
+          rgb(0 0 0 / 0.05) 1px,
+          var(--rewind-white) 1px,
+          var(--rewind-white) 6px
+        )
+        0 0 / 6px 6px,
+      var(--rewind-white);
+  }
+
   .rewind-card.-back {
     transform: rotateY(180deg);
     background-color: var(--rewind-white);
+    color: var(--rewind-black);
   }
 
   .rewind-card.-front,
@@ -177,11 +164,6 @@
     backface-visibility: hidden;
   }
 
-  .rewind-card.-front {
-    background-size: cover;
-    padding: 0.5em;
-  }
-
   &.-long-word .rewind-card__title {
     font-size: var(--font-0);
   }
@@ -193,6 +175,11 @@
   .rewind-card__title {
     overflow-wrap: anywhere;
     hyphens: auto;
+    line-height: 1;
+  }
+
+  .rewind-card__data {
+    margin-top: 0.5em;
   }
 
   .rewind-card__image {