[devtools] panel ui responsiveness (#80732)

https://github.com/user-attachments/assets/a15165f2-e340-4ec6-a3e1-a895bfac1531



Closes NEXT-4548

Author: devjiwonchoi

packages/next/src/next-devtools/dev-overlay/components/devtools-panel/devtools-panel.tsx

@@ -72,6 +72,7 @@ export function DevToolsPanel({
         onClick={onCloseDevToolsPanel}
       />
       <Draggable
+        data-nextjs-devtools-panel-draggable
         padding={INDICATOR_PADDING}
         onDragStart={() => {}}
         position={state.devToolsPosition}
@@ -160,13 +161,35 @@ export const DEVTOOLS_PANEL_STYLES = css`
     margin: auto;
     /* TODO: This is for fullscreen mode. */
     /* top: 10vh; */
+
+    @media (max-width: 575px) {
+      left: 20px !important;
+      right: 20px !important;
+    }
+
+    @media (min-width: 576px) {
+      max-width: 540px;
+    }
+
+    @media (min-width: 768px) {
+      max-width: 720px;
+    }
+
+    @media (min-width: 992px) {
+      max-width: 960px;
+    }
   }
 
   [data-nextjs-devtools-panel-overlay-backdrop] {
     /* TODO: Blur on fullscreen mode. */
     opacity: 0;
   }
 
+  [data-nextjs-devtools-panel-draggable] {
+    /* For responsiveness */
+    width: 100%;
+  }
+
   [data-nextjs-devtools-panel-dialog] {
     -webkit-font-smoothing: antialiased;
     display: flex;
@@ -178,12 +201,9 @@ export const DEVTOOLS_PANEL_STYLES = css`
     box-shadow: var(--shadow-lg);
     position: relative;
     overflow-y: auto;
-
-    /* TODO: Remove once the content is filled. */
-    min-width: 800px;
-    min-height: 500px;
-    /* This is handled from dialog/styles.ts */
-    max-width: var(--next-dialog-max-width);
+    width: 100%;
+    max-height: 50vh;
+    min-height: 450px;
   }
 
   [data-nextjs-devtools-panel-header] {

packages/next/src/next-devtools/dev-overlay/components/errors/dev-tools-indicator/draggable.tsx

@@ -17,6 +17,7 @@ export function Draggable({
   position: currentCorner,
   setPosition: setCurrentCorner,
   onDragStart,
+  ...props
 }: {
   children: React.ReactElement
   position: Corners
@@ -121,7 +122,7 @@ export function Draggable({
   }
 
   return (
-    <div ref={ref} {...drag} style={{ touchAction: 'none' }}>
+    <div {...props} ref={ref} {...drag} style={{ touchAction: 'none' }}>
       {children}
     </div>
   )