Log Message:
editors/featherpad: update to 1.4.0

V1.4.0
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 * Check the view cursor before setting it.
 * Recognize `text/plain;charset=…` as plain text when pasting (Qt doesn't).
 * Highlight comments inside formulas with LaTex.
 * Use icons in the recent files menu where possible.
 * Prevent tab DND from tab close button.
 * Focus side-pane with Ctrl+Escape.
 * Safeguard the file type filters of file dialogs from bad translations.
 * Added `application/x-zerosize` to the desktop file (after a change in GLib).
 * Added an option for showing window title on the menubar.
 * Fixed the tab tooltip for special folders.