waybar: Fix event module spacing

Added a new state which should fix the icon spacing issues:

When we have no upcoming events or upcoming events but none today, we
only display the icon and so we do not add any additional spacing.
(This is alt state `event` or `no-event`)

Only if we have an upcoming event today (alt state `event-today`) are we
printing it directly on the status bar and only then should be have
additional spacing. So we have an icon (the same as for event) with the
correct spacing so that whether there is text on the statusbar or not,
we space correctly.

desktop/.config/waybar/config

@@ -64,6 +64,7 @@
         "format": "{icon}{0}", // issue tracked here https://github.com/Alexays/Waybar/issues/3623
         "format-icons": {
             "event": "",
+            "event-today": "  ",
             "no-event": "",
         },
     },

desktop/.config/waybar/modules/khal.py

@@ -27,13 +27,16 @@ for line in lines:
     if len(clean_line) and clean_line[0] not in ["0", "1", "2"]:
         clean_line = "\n<b>" + clean_line + "</b>"
     new_lines.append(clean_line)
+
 output = "\n".join(new_lines).strip()
 
-data["alt"] = "no-event"
-data["tooltip"] = output
-
-if today in output:
+if today in output: # an event today!
+    data["alt"] = "event-today"
     data["text"] = output.split("\n")[1]
+elif output: # an event in the week!
     data["alt"] = "event"
+    data["tooltip"] = output
+else: # no events
+    data["alt"] = "no-event"
 
 print(json.dumps(data))