frontend: wifi: add refresh wifi list button

[nicoschmdt]

fix #1863

Refresh: https://github.com/user-attachments/assets/93d98ccc-7d2c-4e47-8589-a8b09eafcc67

Summary by Sourcery

Add a manual refresh button to the WifiManager component and wire it up in the WifiTrayMenu to reload available networks on demand

New Features:

• Add a refresh icon button to the WifiManager toolbar that emits a refresh-request event
• Handle the refresh-request in WifiTrayMenu by calling fetchAvailableNetworks on the wifi-updater component

[sourcery-ai[bot]]

Reviewer's Guide

Adds a refresh button to the WifiManager toolbar that emits a refresh-request event, and wires it up in the WifiTrayMenu to invoke fetchAvailableNetworks on the wifi-updater component.

Sequence diagram for the WiFi list refresh interaction

sequenceDiagram
    actor User
    participant WifiManager
    participant WifiTrayMenu
    participant WifiUpdater
    User->>WifiManager: Clicks refresh button
    WifiManager->>WifiTrayMenu: emit refresh-request
    WifiTrayMenu->>WifiUpdater: fetchAvailableNetworks()
    WifiUpdater-->>WifiTrayMenu: (updates WiFi list)
    WifiTrayMenu-->>User: Updated WiFi list displayed

File-Level Changes

Change	Details	Files
Add refresh button and event emission in WifiManager	Insert a toolbar button with mdi-refresh icon and click handler Emit 'refresh-request' event on button click	core/frontend/src/components/wifi/WifiManager.vue
Handle refresh-request in WifiTrayMenu	Add ref 'wifiUpdater' to wifi-updater component Bind @refresh-request on wifi-manager to onRefreshRequest Implement onRefreshRequest method calling fetchAvailableNetworks via ref	core/frontend/src/components/wifi/WifiTrayMenu.vue

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#1863	Add a 'Refresh WiFi list' button to the WiFi management UI.	✅
#1863	Ensure that clicking the 'Refresh WiFi list' button triggers a refresh of the available WiFi networks.	✅

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[nicoschmdt]

I have attached a video of the current refresh behaviour on the description. I'm not too sure if I like having the message "No wifi networks available" when rescanning but it is a minor nitpick

[nicoschmdt]

@ES-Alexander and @Williangalvani what do you guys think?