Updates to image annotations (#60)

* Make image reference lowercase to match files

* Add temp js for annotation

* Make add another work better

* Put radios in grid system

Author: edwardhorsford

app/assets/sass/_misc.scss

@@ -16,7 +16,7 @@
   justify-content: space-between;
   margin-bottom: 20px;
 
-  img {
+  app-mammogram-container {
     width: 48%;
   }
 }

app/assets/sass/components/_annotation.scss

@@ -0,0 +1,70 @@
+/* Mammogram annotation styles */
+
+.app-mammogram-image {
+  cursor: crosshair;
+  max-width: 100%;
+  display: block;
+}
+
+.app-mammogram-container {
+  position: relative;
+  display: inline-block;
+  margin-bottom: 1rem;
+}
+
+.app-mammogram-marker {
+  position: absolute;
+  width: 30px;
+  height: 30px;
+  border-radius: 50%;
+  border: 3px solid #d5281b;
+  background-color: rgba(213, 40, 27, 0.4);
+  transform: translate(-50%, -50%);
+  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.7), 0 0 8px rgba(0, 0, 0, 0.5);
+  z-index: 10;
+  cursor: grab;
+  transition: background-color 0.2s ease;
+}
+
+/* Horizontal line of the crosshair */
+.app-mammogram-marker::before {
+  content: '';
+  position: absolute;
+  left: 0;
+  top: 50%;
+  width: 100%;
+  height: 2px;
+  background-color: #d5281b;
+  transform: translateY(-50%);
+}
+
+/* Vertical line of the crosshair */
+.app-mammogram-marker::after {
+  content: '';
+  position: absolute;
+  left: 50%;
+  top: 0;
+  width: 2px;
+  height: 100%;
+  background-color: #d5281b;
+  transform: translateX(-50%);
+}
+
+/* Visual feedback when dragging */
+.app-mammogram-marker.dragging {
+  background-color: rgba(213, 40, 27, 0.6);
+  cursor: grabbing;
+  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.8), 0 0 12px rgba(0, 0, 0, 0.7);
+  transform: translate(-50%, -50%) scale(1.1);
+}
+
+/* Animation to make marker more noticeable when placed */
+@keyframes pulse {
+  0% { transform: translate(-50%, -50%) scale(1); }
+  50% { transform: translate(-50%, -50%) scale(1.2); }
+  100% { transform: translate(-50%, -50%) scale(1); }
+}
+
+.app-mammogram-marker {
+  animation: pulse 0.6s ease-in-out;
+}

app/assets/sass/main.scss

@@ -16,6 +16,8 @@
 
 @import 'components/overrides';
 
+@import 'components/annotation';
+
 
 
 @import 'misc';