changed translatable strings to lower case

examples/moduleExample.lua

@@ -78,9 +78,9 @@ local function install_module()
         orientation = "vertical",
         dt.new_widget("button")
         {
-          label = _("MyButton"),
+          label = _("my button"),
           clicked_callback = function (_)
-            dt.print(_("Button clicked"))
+            dt.print(_("button clicked"))
           end
         },
         table.unpack(mE.widgets),
@@ -103,10 +103,10 @@ local function restart()
 end
 
 -- https://www.darktable.org/lua-api/types_lua_check_button.html
-local check_button = dt.new_widget("check_button"){label = _("MyCheck_button"), value = true}
+local check_button = dt.new_widget("check_button"){label = _("my check_button"), value = true}
 
 -- https://www.darktable.org/lua-api/types_lua_combobox.html
-local combobox = dt.new_widget("combobox"){label = _("MyCombobox"), value = 2, "8", "16", "32"}
+local combobox = dt.new_widget("combobox"){label = _("my combobox"), value = 2, "8", "16", "32"}
 
 -- https://www.darktable.org/lua-api/types_lua_entry.html
 local entry = dt.new_widget("entry")
@@ -115,21 +115,21 @@ local entry = dt.new_widget("entry")
     placeholder = _("placeholder"),
     is_password = false,
     editable = true,
-    tooltip = _("Tooltip Text"),
+    tooltip = _("tooltip text"),
     reset_callback = function(self) self.text = "text" end
 }
 
 -- https://www.darktable.org/lua-api/types_lua_file_chooser_button.html
 local file_chooser_button = dt.new_widget("file_chooser_button")
 {
-    title = _("MyFile_chooser_button"),  -- The title of the window when choosing a file
+    title = _("my file_chooser_button"),  -- The title of the window when choosing a file
     value = "",                       -- The currently selected file
     is_directory = false              -- True if the file chooser button only allows directories to be selecte
 }
 
 -- https://www.darktable.org/lua-api/types_lua_label.html
 local label = dt.new_widget("label")
-label.label = _("MyLabel") -- This is an alternative way to the "{}" syntax to set a property 
+label.label = _("my label") -- This is an alternative way to the "{}" syntax to set a property 
 
 -- https://www.darktable.org/lua-api/types_lua_separator.html
 local separator = dt.new_widget("separator"){}
@@ -137,7 +137,7 @@ local separator = dt.new_widget("separator"){}
 -- https://www.darktable.org/lua-api/types_lua_slider.html
 local slider = dt.new_widget("slider")
 {
-  label = _("MySlider"), 
+  label = _("my slider"), 
   soft_min = 10,      -- The soft minimum value for the slider, the slider can't go beyond this point
   soft_max = 100,     -- The soft maximum value for the slider, the slider can't go beyond this point
   hard_min = 0,       -- The hard minimum value for the slider, the user can't manually enter a value beyond this point