terminal profile: move Cancel/Apply to the top of the dialog

The actions sat below the note line and the (long, 45vh) bits grid, so they
needed scrolling to reach. They now sit to the right of the preset selector
and hex field, aligned with the preset row; the bit grid is unchanged.

frontend/tests/terminal_profile.test.js

@@ -117,6 +117,9 @@ test('Phone tab exposes the TERMINAL PROFILE block and Configure dialog', () =>
 	assert.ok(html.includes('id="tp-apply-btn"'));
 	// the preset select sits above the hex field, not next to it
 	assert.ok(html.indexOf('id="tp-preset"') < html.indexOf('id="tp-hex"'));
+	// Apply/Cancel sit at the top (right of the preset/hex fields), above the
+	// long bits grid, so they are reachable without scrolling
+	assert.ok(html.indexOf('id="tp-apply-btn"') < html.indexOf('id="tp-form"'));
 });
 
 test('tpLayoutGroups lays the byte blocks out in the configured columns', () => {