Dodaj funkcję pełnoekranowego wyświetlania opisu zadania oraz odpowiednie style

layout/style.scss

@@ -630,6 +630,41 @@ body>.top {
   }
 }
 
+.fullscreen_description {
+  position: fixed !important;
+  top: 25px;
+  left: 25px;
+  right: 25px;
+  bottom: 25px;
+  z-index: 9999;
+  background: white;
+  padding: 20px;
+  overflow: auto;
+  border-radius: 0.25rem;
+  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
+}
+
+.fullscreen {
+  position: absolute;
+  top: 10px;
+  right: 10px;
+  cursor: pointer;
+  color: #FFF;
+  background: $cRed;
+  display: inline-flex;
+  height: 40px;
+  width: 40px;
+  border-radius: .25rem;
+  align-items: center;
+  justify-content: center;
+  transition: all 0.3s ease;
+
+  &:hover {
+    transform: scale(1.05);
+    text-decoration: none;
+  }
+}
+
 .task_popup {
   position: fixed;
   top: 0;
@@ -904,6 +939,7 @@ body>.top {
           margin-bottom: 15px;
           max-height: 202px;
           overflow-x: hidden;
+          position: relative;
         }
       }