[nautilus] css: Fix pathbar custom style on RTL

[António Fernandes <antoniof src gnome org>]

commit 023b42ad74f047f8692db9e3329aff23e17c20a0
Author: António Fernandes <antoniof gnome org>
Date:   Sun Mar 27 16:59:46 2022 +0100

    css: Fix pathbar custom style on RTL
    
    Related to https://gitlab.gnome.org/GNOME/nautilus/-/issues/2201

 src/resources/css/Adwaita.css | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)
---
diff --git a/src/resources/css/Adwaita.css b/src/resources/css/Adwaita.css
index e84732532..5667922fb 100644
--- a/src/resources/css/Adwaita.css
+++ b/src/resources/css/Adwaita.css
@@ -33,23 +33,31 @@
 
 .nautilus-path-bar > scrolledwindow {
   margin: 6px 0px 6px 0px;
-  border-radius: 6px 0px 0px 6px;
-  border-right-width: 0px;
   background-color: alpha(currentColor, 0.1);
 }
-.nautilus-path-bar > scrolledwindow undershoot.left {
+
+.nautilus-path-bar scrolledwindow:dir(ltr),
+.nautilus-path-bar scrolledwindow:dir(ltr) undershoot.left {
   border-radius: 6px 0px 0px 6px;
+}
+
+.nautilus-path-bar scrolledwindow:dir(rtl),
+.nautilus-path-bar scrolledwindow:dir(rtl) undershoot.right {
+  border-radius: 0px 6px 6px 0px;
+}
+
+/* Linked look */
+.nautilus-path-bar scrolledwindow:dir(rtl) {
+  margin-left: -1px;
+}
+
+.nautilus-path-bar scrolledwindow undershoot.left {
   background: linear-gradient(to right, @headerbar_shade_color 6px, alpha(@headerbar_shade_color, 0) 24px);
 }
 .nautilus-path-bar > scrolledwindow undershoot.right {
   background: linear-gradient(to left, @headerbar_shade_color 6px, alpha(@headerbar_shade_color, 0) 24px);
 }
 
-.nautilus-path-bar > button,
-.path-buttons-box button {
-  margin: 0px;
-}
-
 .path-buttons-box button {
   margin: 3px;
   box-shadow: none;