[keybindings] add 'Reset' button to the edit keybinding dialog

[vince-fugnitto]

Description

• created a custom EditKeybinding dialog used to edit keybindings, and reset custom
  keybindings to their default value. Custom keybindings are keybindings which have
  a User scope (exist in the keymaps.json).
• the additional functionality added to the edit keybindings dialog is
  used to more easily revert custom keybindings without the need to click
  the revert button in the tree.

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How to Test

1. open the keybindings-widget: F1 then select Open Keyboard Shortcuts.
2. update a command's keybinding (using the edit button or double click the row in the table).
3. click the edit again (once a custom keybinding has been set).
4. notice the Reset button.
5. click the Reset button.
6. the keybinding for the command should be properly reset to it's default value.

Signed-off-by: Vincent Fugnitto vincent.fugnitto@ericsson.com

[lmcbout]

While testing, I added a filter in the "Search keybindings" field and no "Reset" button was available to return to the default value. As a filter I entered "user" to filter the modified keybindings.

[vince-fugnitto]

While testing, I added a filter in the "Search keybindings" field and no "Reset" button was available to return to the default value. As a filter I entered "user" to filter the modified keybindings.

@lmcbout

Do you have any command with a custom keybinding?
Only commands which are edited will display the reset in the table, and the reset in the dialog.

[fangnx]

When I tested, it seemed I could still use the old/default keybinding after the edit.

To reproduce this:

1. Change the keybinding for Add Line Comment from ctrl+k ctrl+x to something else (ctrl+k ctrl+p, for example).
2. Go to the editor. Both the old and new keybindings should work.

Environment: Chrome + MacOS.

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Maybe this is not related to this PR. I tried on master branch and got the same issue.

[lmcbout]

While testing, I added a filter in the "Search keybindings" field and no "Reset" button was available to return to the default value. As a filter I entered "user" to filter the modified keybindings.

@lmcbout

Do you have any command with a custom keybinding?
Only commands which are edited will display the reset in the table, and the reset in the dialog.

@vince-fugnitto
I have a few custom keybindings and the reset is not showing

[vince-fugnitto]

While testing, I added a filter in the "Search keybindings" field and no "Reset" button was available to return to the default value. As a filter I entered "user" to filter the modified keybindings.

@lmcbout
Do you have any command with a custom keybinding?
Only commands which are edited will display the reset in the table, and the reset in the dialog.

@vince-fugnitto
I have a few custom keybindings and the reset is not showing

Could you show me? A gif perhaps.

[lmcbout]

Also, the reset on the keybinding shortcut page disseapear when entering a filter. See the video, The "Add Folder to workspace" has the rest option until I add a filter, then it only dislay the"Edit"icon"

[vince-fugnitto]

@lmcbout thank you Jacques, the reset button and icon are now present if the search matches the scope column. You can kindly re-test whenever you get the chance.

[lmcbout]

Minor comment
Also, when you reset the keybinding, it would be nice if the focus remains on the selected items. Could be done in a separate PR

LGTM .

[vince-fugnitto]

Thanks guys! @lmcbout @fangnx