man: Fix several whitespace formatting issues

Fix the following whitespace formatting issues:
- Indentation in scdoc source files should be done with tabs.
- Lines where there (clearly) should be a line break, need to have '++'
  at the end, but several were missing them.
- The scdoc manual (clearly) states that lines should be hard wrapped
  at 80 columns, but when line(s) are indented, that causes rendering
  issues. So lines where a line break was not clearly intended or
  clearly not intended, have been put onto 1 line to circumvent the
  rendering issue.

Link: https://lists.sr.ht/~sircmpwn/public-inbox/%3C8251560.T7Z3S40VBb%40bagend%3E

man/waybar-hyprland-window.5.scd

@@ -62,11 +62,11 @@ Invalid expressions (e.g., mismatched parentheses) are skipped.
 
 ```
 "hyprland/window": {
-    "format": "{}",
-    "rewrite": {
-      "(.*) - Mozilla Firefox": "🌎 $1",
-      "(.*) - zsh": "> [$1]"
-    }
+	"format": "{}",
+	"rewrite": {
+		"(.*) - Mozilla Firefox": "🌎 $1",
+		"(.*) - zsh": "> [$1]"
+	}
 }
 ```