fix: Array nesting issue in devices and applications table rendering

Fixed "[object HTMLDivElement]" display bug in device and application list views.

## Problem:
- Device list showed "[object HTMLDivElement],[object HTMLDivElement],..." instead of table rows
- Applications list had the same issue
- Root cause: `sortedDevices.map()` and `sortedApps.map()` return arrays, but these arrays were being nested incorrectly in the E() children array

## Solution:
Changed table row structure from:
```javascript
E('div', { 'class': 'table' }, [
    E('div', { 'class': 'tr table-titles' }, [...]),  // header
    sortedDevices.map(function(device) {              // array nested wrong!
        return E('div', {...});
    })
])
```

To:
```javascript
E('div', { 'class': 'table' },
    [
        E('div', { 'class': 'tr table-titles' }, [...])  // header
    ].concat(
        sortedDevices.map(function(device) {             // properly flattened!
            return E('div', {...});
        })
    )
)
```

## Technical Details:
- The E() helper expects children to be individual DOM elements, not nested arrays
- Using `.concat()` properly flattens the array of row elements
- Applied fix to both devices.js and applications.js views

## Testing:
- Deployed to router
- Device list now displays all 6 detected devices with IP, MAC, traffic stats
- Applications list displays all 4 application categories correctly
- Table formatting and styling render properly

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

package/secubox/luci-app-secubox-netifyd/htdocs/luci-static/resources/view/secubox-netifyd/applications.js

@@ -169,7 +169,8 @@ return view.extend({
 		}.bind(this);
 
 		dom.content(container, [
-			apps.length > 0 ? E('div', { 'class': 'table', 'style': 'font-size: 0.95em' }, [
+			apps.length > 0 ? E('div', { 'class': 'table', 'style': 'font-size: 0.95em' },
+				[
 					// Header
 					E('div', { 'class': 'tr table-titles' }, [
 						E('div', {
@@ -209,8 +210,8 @@ return view.extend({
 							getSortIcon('bytes')
 						]),
 						E('div', { 'class': 'th', 'style': 'width: 20%' }, _('% of Total'))
-				]),
-
+					])
+				].concat(
 					// Rows
 					sortedApps.map(function(app, idx) {
 					var percentage = totalBytes > 0 ? (app.bytes / totalBytes * 100) : 0;
@@ -250,7 +251,8 @@ return view.extend({
 						])
 					]);
 				}.bind(this))
-			]) : E('div', {
+				)
+			) : E('div', {
 				'class': 'alert-message info',
 				'style': 'text-align: center; padding: 3rem'
 			}, [

package/secubox/luci-app-secubox-netifyd/htdocs/luci-static/resources/view/secubox-netifyd/devices.js

@@ -172,7 +172,8 @@ return view.extend({
 		}.bind(this);
 
 		dom.content(container, [
-			devices.length > 0 ? E('div', { 'class': 'table', 'style': 'font-size: 0.95em' }, [
+			devices.length > 0 ? E('div', { 'class': 'table', 'style': 'font-size: 0.95em' },
+				[
 					// Header
 					E('div', { 'class': 'tr table-titles' }, [
 						E('div', {
@@ -213,8 +214,8 @@ return view.extend({
 							getSortIcon('bytes_received')
 						]),
 						E('div', { 'class': 'th', 'style': 'width: 20%' }, _('Traffic Distribution'))
-				]),
-
+					])
+				].concat(
 					// Rows
 					sortedDevices.map(function(device, idx) {
 					var lastSeen = device.last_seen || 0;
@@ -278,7 +279,8 @@ return view.extend({
 						])
 					]);
 				}.bind(this))
-			]) : E('div', {
+				)
+			) : E('div', {
 				'class': 'alert-message info',
 				'style': 'text-align: center; padding: 3rem'
 			}, [