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-sway-scratchpad.5.scd

@@ -50,11 +50,11 @@ Addressed by *sway/scratchpad*
 
 ```
 "sway/scratchpad": {
-    "format": "{icon} {count}",
-    "show-empty": false,
-    "format-icons": ["", ""],
-    "tooltip": true,
-    "tooltip-format": "{app}: {title}"
+	"format": "{icon} {count}",
+	"show-empty": false,
+	"format-icons": ["", ""],
+	"tooltip": true,
+	"tooltip-format": "{app}: {title}"
 }
 ```