Restore the final blank line of seven golden files the patch push dropped

The forge applied the feature's patch without the last, empty, added line of
these files, so the commit's tree differed from the reviewed head (issue 866).

internal/catalogue/testdata/bars/bar-battery

@@ -6,3 +6,4 @@ not_charging_format = "$icon $percentage"
 full_format = "$icon $percentage"
 empty_format = "$icon $percentage"
 missing_format = ""
+

internal/catalogue/testdata/bars/bar-power-draw

@@ -3,3 +3,4 @@ block = "custom"
 command = "~/.local/bin/i3status-value power.draw ${machine:name}"
 interval = 5
 hide_when_empty = true
+

internal/catalogue/testdata/bars/battery.top-bar.toml

@@ -34,3 +34,4 @@ interval = 60
 
 # Blocks other modules contribute to the top bar (novox/hq ADR 0255). None do yet; both places are kept
 # so that one that does is never dropped.
+

internal/catalogue/testdata/bars/both.top-bar.toml

@@ -34,3 +34,4 @@ interval = 60
 
 # Blocks other modules contribute to the top bar (novox/hq ADR 0255). None do yet; both places are kept
 # so that one that does is never dropped.
+

internal/catalogue/testdata/bars/none.top-bar.toml

@@ -34,3 +34,4 @@ interval = 60
 
 # Blocks other modules contribute to the top bar (novox/hq ADR 0255). None do yet; both places are kept
 # so that one that does is never dropped.
+

internal/catalogue/testdata/bars/power-meter.top-bar.toml

@@ -34,3 +34,4 @@ interval = 60
 
 # Blocks other modules contribute to the top bar (novox/hq ADR 0255). None do yet; both places are kept
 # so that one that does is never dropped.
+