Add delete hotkey

(cherry picked from commit 269542c4b0373e1f200afaab01d7d102c5d6194c)

mods/common/fluent/chrome.ftl

@@ -52,7 +52,6 @@ label-save-map-panel-directory = Directory:
 label-save-map-panel-filename = Filename:
 button-save-map-panel = Save
 label-actor-edit-panel-id = ID
-button-container-delete = Delete
 button-container-ok = OK
 label-tiles-bg-search = Search:
 label-bg-filter = Filter:
@@ -83,6 +82,11 @@ button-map-editor-tab-container-history-tooltip = History
 
 button-delete-area =
    .label = Delete
+   .tooltip = Remove everything in the selected area
+
+button-delete-actor =
+   .label = Delete
+   .tooltip = Remove the selected actor
 
 button-editor-world-root-options =
    .label = Menu

mods/common/fluent/hotkeys.ftl

@@ -70,6 +70,7 @@ hotkey-description-editorredo = Redo
 hotkey-description-editorcopy = Copy
 hotkey-description-editorquicksave = Save Map
 hotkey-description-editorpaste = Paste
+hotkey-description-editordeleteselection = Delete Selection
 hotkey-description-editorselecttab = Select Tab
 hotkey-description-editortilestab = Tiles Tab
 hotkey-description-editoroverlaystab = Overlays Tab