feat: add workflow overview toggle to canvas editor modal

src/css/canvas_view.css

@@ -1066,27 +1066,50 @@
 
 .lf-painter-modal-backdrop {
     position: fixed;
-    top: 0;
-    left: 0;
+    inset: 0;
     width: 100vw;
     height: 100vh;
-    background-color: rgba(0, 0, 0, 0.8);
+    background-color: transparent;
     z-index: 999999;
+    pointer-events: none;
+}
+
+.lf-painter-modal-content {
+    position: absolute;
+    inset: 0;
+    width: auto;
+    height: auto;
+    background-color: #353535;
+    border: none;
+    border-radius: 0;
+    box-shadow: none;
     display: flex;
+    flex-direction: column;
+    overflow: hidden;
+    pointer-events: auto;
+    box-sizing: border-box;
+}
+
+.lf-workflow-overview-toggle {
+    position: absolute;
+    top: 12px;
+    right: 12px;
+    z-index: 30;
+    width: 32px;
+    min-width: 32px;
+    height: 32px;
+    padding: 0;
+    display: inline-flex;
     align-items: center;
     justify-content: center;
 }
 
-.lf-painter-modal-content {
-    width: 90vw;
-    height: 90vh;
-    background-color: #353535;
-    border: 1px solid #222;
-    border-radius: 8px;
-    box-shadow: 0 5px 25px rgba(0,0,0,0.5);
-    display: flex;
-    flex-direction: column;
-    position: relative;
+.lf-workflow-overview-toggle i[class~="icon-[lucide--panel-right]"] {
+    font-size: 16px;
+}
+
+.lf-workflow-overview-toggle.lf-workflow-overview-open {
+    background: var(--comfy-menu-bg, #2f2f2f);
 }
 
 .lf-painter-main-container {