Feat: add big-button plugin

theme/static/stylesheet/style.less

@@ -75,6 +75,39 @@ img {
   box-shadow: 0px 0px 10px @light-grey;
 }
 
+.button {
+    margin: 20px;
+    border: 3px solid @orange;
+    width: 250px;
+    height: 150px;
+    border-radius: 25px;
+    display: inline-flex;
+    vertical-align: top;
+    padding: 5px 15px;
+    * {
+        display: flex;
+        justify-content: center;
+        flex-direction: column;
+        gap: 10px;
+    }
+    a {
+        width:100%;
+        height:100%;
+    }
+    .nolink {
+        width:100%;
+        height:100%;
+    }
+    h3 {
+        margin: 0px;
+    }
+
+}
+
+.button:hover {
+    background-color: @light-grey;
+}
+
 aside {
   background-color: @sidebar-bg;
   color: @sidebar-text-color;