🐛 Fix permission message and update ruler guide proxy name on plugins api (#8632)

- Updated the error message for missing content write permission in the removeRulerGuide function.
- Renamed the ruler guide proxy from "RuleGuideProxy" to "RulerGuideProxy" for consistency.
- Adjusted variable naming in the addRulerGuide function for clarity.

Signed-off-by: Stas Haas <stas@girafic.de>

frontend/src/app/plugins/page.cljs

@@ -331,7 +331,7 @@
         (u/display-not-valid :removeRulerGuide "Guide not provided")
 
         (not (r/check-permission plugin-id "content:write"))
-        (u/display-not-valid :removeRulerGuide "Plugin doesn't have 'comment:write' permission")
+        (u/display-not-valid :removeRulerGuide "Plugin doesn't have 'content:write' permission")
 
         :else
         (let [guide (u/proxy->ruler-guide value)]

frontend/src/app/plugins/ruler_guides.cljs

@@ -24,7 +24,7 @@
 
 (defn ruler-guide-proxy
   [plugin-id file-id page-id id]
-  (obj/reify {:name "RuleGuideProxy"}
+  (obj/reify {:name "RulerGuideProxy"}
     :$plugin {:enumerable false :get (constantly plugin-id)}
     :$file {:enumerable false :get (constantly file-id)}
     :$page {:enumerable false :get (constantly page-id)}

frontend/src/app/plugins/shape.cljs

@@ -1267,7 +1267,7 @@
                  (u/display-not-valid :addRulerGuide "Plugin doesn't have 'content:write' permission")
 
                  :else
-                 (let [id        (uuid/next)
+                 (let [ruler-id  (uuid/next)
                        axis      (parser/orientation->axis orientation)
                        objects   (u/locate-objects file-id page-id)
                        frame     (get objects id)
@@ -1275,11 +1275,11 @@
                        position  (+ board-pos value)]
                    (st/emit!
                     (dwgu/update-guides
-                     {:id       id
+                     {:id       ruler-id
                       :axis     axis
                       :position position
                       :frame-id id}))
-                   (rg/ruler-guide-proxy plugin-id file-id page-id id)))))
+                   (rg/ruler-guide-proxy plugin-id file-id page-id ruler-id)))))
 
            :removeRulerGuide
            (fn [_ value]