fix: topiary 0.7.0 required! keep trailing newlines in raw string contents in string interpolation

Author: blindFS

README.md

@@ -20,7 +20,7 @@
 
 ## Setup
 
-1. Install topiary-cli using whatever package-manager on your system (0.6.1+ required)
+1. Install topiary-cli using whatever package-manager on your system (0.7.0+ required)
 
 ```nushell
 # e.g. installing with cargo

languages/nu.scm

@@ -18,8 +18,7 @@
   (path)
 ] @leaf
 
-;; TODO: new feature of the next topiary release
-;; (unescaped_interpolated_content) @keep_whitespaces
+(unescaped_interpolated_content) @keep_whitespace
 
 ;; keep empty lines
 (_) @allow_blank_line_before

test/expected_string.nu

@@ -15,3 +15,8 @@ const hybrid_help_cmd = (
 mut foo = 'foo bar'
 $foo += 'baz'
 $foo += r#'baz'#
+
+# https://github.com/blindFS/topiary-nushell/issues/28
+$'
+
+(1)'

test/input_string.nu

@@ -14,3 +14,8 @@ const hybrid_help_cmd = ("Multiline
 mut  foo = 'foo bar'
 $foo  += 'baz'
 $foo  +=  r#'baz'#
+
+# https://github.com/blindFS/topiary-nushell/issues/28
+$'
+
+(1)'