docs(man): document options implemented but missing from man pages

Sync man pages with the code for options that were read but undocumented:
- sway/workspaces: ignore-workspaces
- niri/workspaces: sort-by-number, hide-empty
- wayfire/workspaces: disable-scroll, enable-bar-scroll
- river/tags: set-tags, toggle-tags
- hyprland/workspaces: persistent-workspaces (formalized)
- hyprland/window: fallback, tooltip-format
- cpu: format-<state>, tooltip-format, tooltip-format-<state>
- pulseaudio/slider: ignored-sinks
- hyprland/niri/mango language: format-<lang>-<variant> (+ hyprland tooltip variant)

man/waybar-pulseaudio-slider.5.scd

@@ -48,6 +48,11 @@ The volume can be controlled by dragging the slider across the bar or clicking o
 	default: sink ++
 	The audio target to control. Can be either `sink` (output/speakers) or `source` (input/microphone).
 
+*ignored-sinks*: ++
+    typeof: array ++
+    default: empty ++
+    A list of sink descriptions to ignore when tracking the default sink, so switching to those sinks does not update the slider.
+
 # EXAMPLES
 
 ```