gnu: python-ueberzug: Deprecate in favor of ueberzug.

* gnu/packages/python-xyz.scm (ueberzug): New variable, based on
python-ueberzug.
(python-ueberzug): Deprecate variable.

* gnu/packages/image-viewers.scm (ytfzf)[phases] {wrap-program}: Replace
python-ueberzug with ueberzug.
[inputs]: Remove python-ueberzug; add ueberzug.

Change-Id: I9beba793dc23020f6091b46842c83cf01277dca5

gnu/packages/image-viewers.scm

@@ -219,7 +219,7 @@ opening the image directly in a terminal window.")
                           (string-append (assoc-ref inputs input) "/bin"))
                         '("bash" "catimg" "chafa" "coreutils" "curl"
                           "dmenu" "fzf" "gawk" "grep" "jp2a" "jq"
-                          "libnotify" "mpv" "ncurses" "python-ueberzug"
+                          "libnotify" "mpv" "ncurses" "ueberzug"
                           "sed" "util-linux" "yt-dlp")))
                 `("YTFZF_SYSTEM_ADDON_DIR" ":" =
                   ,(list (string-append #$output "/share/ytfzf/addons")))))))))
@@ -239,7 +239,7 @@ opening the image directly in a terminal window.")
            mpv
            ncurses
            perl                         ;for convert-ascii-escape.pl
-           python-ueberzug
+           ueberzug
            sed
            util-linux
            yt-dlp))

gnu/packages/python-xyz.scm

@@ -2183,9 +2183,9 @@ Interface} to simplify common problems such as caching, timing, computing
 progress, among other things.")
     (license license:asl2.0)))
 
-(define-public python-ueberzug
+(define-public ueberzug
   (package
-    (name "python-ueberzug")
+    (name "ueberzug")
     (version "18.3.1")
     (source
      (origin
@@ -2218,6 +2218,9 @@ workspaces.
 @end itemize")
     (license license:gpl3+)))
 
+(define-public python-ueberzug
+  (deprecated-package "python-ueberzug" ueberzug))
+
 (define-public python-databind-core
   (package
     (name "python-databind-core")