feat(frontend): eerste queries voor assignments

frontend/src/assets/assignment.css

@@ -0,0 +1,44 @@
+.container {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    padding: 2%;
+    min-height: 100vh;
+}
+
+.assignment-card {
+    width: 85%;
+    padding: 2%;
+    border-radius: 12px;
+}
+
+.description {
+    margin-top: 2%;
+    line-height: 1.6;
+    font-size: 1.1rem;
+}
+
+.top-right-btn {
+    position: absolute;
+    right: 2%;
+    color: red;
+}
+
+.group-section {
+    margin-top: 2rem;
+}
+
+.group-section h3 {
+    margin-bottom: 0.5rem;
+}
+
+.group-section ul {
+    padding-left: 1.2rem;
+    list-style-type: disc;
+}
+
+.subtitle-section {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+}