Bug 509361

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SUMMARY
I am trying to import the Flameshot custom keybinds file (https://raw.githubusercontent.com/flameshot-org/flameshot/master/docs/shortcuts-config/flameshot-shortcuts-kde.khotkeys). However, clicking on "Import" does not open a file picker, except for when the option is "Custom scheme", which does not actually import the file.

STEPS TO REPRODUCE
1. Go to Keyboard -> Shortcuts
2. Press "Import..."
3. Click on "Import"

OBSERVED RESULT
Clicking on "Import" does not open a file picker to choose your custom keybind file.

EXPECTED RESULT
"Import" should open a file picker.

SOFTWARE/OS VERSIONS
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 6.16.5-arch1-1
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2

ADDITIONAL INFORMATION
qrc:/qt/qml/org/kde/kirigami/dialogs/PromptDialog.qml:100: TypeError: Cannot read property 'None' of undefined
// After clicking on "Import"
org.kde.kcm_keys: Ignoring unknown component "kxkb"
org.kde.kcm_keys: Ignoring unknown component "Settings"
org.kde.kcm_keys: Ignoring unknown action "Desktop Screenshot to Clipboard"
org.kde.kcm_keys: Ignoring unknown action "Mouse Emulation"
org.kde.kcm_keys: Ignoring unknown action "Walk Through Desktop List"
org.kde.kcm_keys: Ignoring unknown action "Walk Through Desktop List (Reverse)"
org.kde.kcm_keys: Ignoring unknown action "Walk Through Desktops"
org.kde.kcm_keys: Ignoring unknown action "Walk Through Desktops (Reverse)"
org.kde.kcm_keys: Ignoring unknown action "Window Screenshot to Clipboard"
org.kde.kcm_keys: Ignoring unknown component "klipper"
org.kde.kcm_keys: Ignoring unknown component "krunner"