Improve trail planning: option to re-order route anchors (#1007)

* trail anchor list added

* add search location card to extend route endpoint in drawing mode

* add POI popup endpoint action in route drawing mode

* fix anchor stats, improve anchor list entries and refine route marker behavior

* fix map marker spinner

* docs updated

* fix spinner when delete an anchor

* further improvements

* fix adding first anchor from POI

* optimize drag handle area

---------

Co-authored-by: Flomp <Flomp@users.noreply.github.com>

web/src/lib/components/trail/trail_dropdown.svelte

@@ -289,6 +289,7 @@
                               text: $_("delete"),
                               value: "delete",
                               icon: "trash",
+                              danger: true,
                           },
                       ]
                     : []),
@@ -413,6 +414,7 @@
                           text: $_("delete"),
                           value: "delete",
                           icon: "trash",
+                          danger: true,
                       },
                   ]
                 : []),