Log Message:
editors/featherpad: update to 1.5.0

V1.5.0
---------
 * Removed Qt5 support.
 * Prevent the cursor position from being changed when files are dropped into
   the text view.
 * Support regex replacement with capturing groups. The credit goes to Marco
   Holmer for suggesting not only this feature but also the way of implementing it.
 * Enhanced the conversion to start case by including 100,000 characters and also
   finding the first letter of each word.
 * Scroll horizontally with mouse wheel inside text view if Alt is pressed and
   horizontal scrollbar is visible.
 * Highlight Openbox's "themerc" files (revived by LabWC).
 * Fixed a rare issue in the geometry of a warning bar animated during window
   resizing.
 * Covered a case of here-strings in bash.