Remove unneeded 'use's from RichText/TreeView

Author: japhb

lib/Terminal/Widgets/RichText.rakumod

@@ -1,10 +1,6 @@
 # ABSTRACT: A text widget that has clickable lines / a selected line.
 
-use Text::MiscUtils::Layout;
-
 use Terminal::Widgets::Events;
-use Terminal::Widgets::SpanStyle;
-use Terminal::Widgets::SpanBuffer;
 use Terminal::Widgets::Focusable;
 use Terminal::Widgets::SpanWrappingAndHighlighting;
 
@@ -19,8 +15,7 @@ class Terminal::Widgets::RichText
         $!wrap = $wrap if $wrap;
     }
 
-    #| Replace the contents of this RichText widget.
-    method set-text(SpanContent $content) {
+    method set-text($content) {
         self!set-text: $content;
     }
 

lib/Terminal/Widgets/TreeView.rakumod

@@ -1,10 +1,6 @@
 # ABSTRACT: A text widget that has clickable lines / a selected line.
 
-use Text::MiscUtils::Layout;
-
 use Terminal::Widgets::Events;
-use Terminal::Widgets::SpanStyle;
-use Terminal::Widgets::SpanBuffer;
 use Terminal::Widgets::Focusable;
 use Terminal::Widgets::SpanWrappingAndHighlighting;
 
@@ -386,7 +382,8 @@ class Terminal::Widgets::TreeView
                                                   self.x-scroll + $x, $rel-y);
                 $!cursor-x = $x min self!chars-in-line(@!lines[$line-index]) - 1;
 
-                my $prefix-len = duospace-width(self!dn-get-prefix($dn));
+                my $locale = $.terminal.locale;
+                my $prefix-len = $locale.width(self!dn-get-prefix($dn));
                 if $!cursor-x < $prefix-len {
                     self!toggle-expand-dn($dn);
                 }