Check metadata and highlighting for 'Connectivity' examples (6.7)

Examples in category: https://doc-snapshots.qt.io/qt6-6.7/qtexamplesandtutorials.html#connectivity

List in Qt Creator:

Annotated URL *, Bluetooth Low Energy Heart Rate Game *, Bluetooth Low Energy Scanner *, CAN Bus Manager *, Modbus Client *, Modbus Server *, Time Client Application *, Time Server Application *
Blocking Receiver, Blocking Sender, Bluetooth Chat, Bluetooth Low Energy Heart Rate Server, D-Bus Chat, D-Bus Complex Ping Pong, D-Bus Ping Pong, D-Bus Remote Controlled Car, Local Fortune Client, Local Fortune Server, MQTT Subscriptions, Modbus Custom Command, Model-View Client, Model-View Server, NDEF Editor, Qt Quick Publication, Qt Quick Subscription, QtRemoteObjects WebSockets Applications, Quick CoAP Multicast Discovery, Quick Secure CoAP Client, SSL Server and Client, Serial Terminal, Simple CoAP Client, Simple MQTT Client, Simpleswitch Direct Server and Client, WebSockets MQTT Subscription

*: highlighted