Meta+Userland: Run the GML formatter on CI and pre-commit

Now that the GML formatter is both perserving comments and also mostly
agrees to the existing GML style, it can be used to auto-format all the
GML files in the system. This commit does not only contain the scripts
for running the formatting on CI and the pre-commit hook, but also
initially formats all the existing GML files so that the hook is
successfull.

Userland/DevTools/HackStudio/Dialogs/Git/GitCommitDialog.gml

@@ -1,6 +1,5 @@
 @GUI::Frame {
     fill_with_background_color: true
-
     layout: @GUI::VerticalBoxLayout {
         spacing: 4
         margins: [4, 4, 4, 4]
@@ -18,8 +17,8 @@
 
     @GUI::Widget {
         layout: @GUI::HorizontalBoxLayout
-        shrink_to_fit: true
 
+        shrink_to_fit: true
         @GUI::Label {
             name: "line_and_col_label"
             text: "Line: 1, Col: 0"