mode/hint: Set style.right for :left hints

Calculate and set style.right instead of setting style.left +
style.transform (for :left hints).

Limit style.left/right in both directions: Not less than 0, not to close
to the window border.

source/mode/hint.lisp

@@ -128,22 +128,34 @@ A positive value shifts to the bottom.")
                                       (:left padding-left)
                                       (:right (- padding-right))
                                       (otherwise 0)))
+              (absolute-x-position (+ (ps:@ window page-x-offset)
+                                      relative-x-position
+                                      padding-x-adjustment
+                                      user-x-offset))
+              (inner-width (ps:@ window inner-width))
+              (max-x-position (- inner-width 25))
               (element (ps:chain document (create-element "span"))))
       (setf (ps:@ element class-name) "nyxt-hint"
             (ps:@ element style position) "absolute"
-            (ps:@ element style left) (+ (ps:max (+ (ps:@ window page-x-offset)
-                                                    relative-x-position
-                                                    padding-x-adjustment
-                                                    user-x-offset)
-                                                 0)
-                                         "px")
+            (ps:@ element style left) (unless (eq user-x-alignment :left)
+                                        (+ (ps:min
+                                             max-x-position
+                                             (ps:max
+                                               0
+                                               absolute-x-position))
+                                           "px"))
+            (ps:@ element style right) (when (eq user-x-alignment :left)
+                                         (+ (ps:min
+                                              max-x-position
+                                              (ps:max
+                                                0
+                                                (- inner-width absolute-x-position)))
+                                            "px"))
             (ps:@ element style top) (+ (ps:max (+ (ps:@ window page-y-offset)
                                                    (ps:@ rect top)
                                                    user-y-offset)
                                                 0)
                                         "px")
-            (ps:@ element style transform) (when (eq user-x-alignment :left)
-                                             "translate(-100%, 0)")
             (ps:@ element id) (+ "nyxt-hint-" hint)
             (ps:@ element text-content) hint)
       element))