Function update_editable_text_layout 

pub fn update_editable_text_layout(
    font_cx: ResMut<'_, FontCx>,
    layout_cx: ResMut<'_, LayoutCx>,
    scale_cx: ResMut<'_, ScaleCx>,
    font_atlas_set: ResMut<'_, FontAtlasSet>,
    textures: ResMut<'_, Assets<Image>>,
    input_field_query: Query<'_, '_, (Entity, &TextFont, Ref<'_, FontHinting>, Ref<'_, ComputedUiRenderTargetInfo>, &mut EditableText, &mut TextLayoutInfo, Ref<'_, ComputedNode>, &mut EditableTextGeneration)>,
    rem_size: Res<'_, RemSize>,
    input_focus: Option<Res<'_, InputFocus>>,
    cursor_timer: Local<'_, Duration>,
    time: Res<'_, Time<Real>>,
)

Refreshes the EditableText’s layout if stale and then writes it it to TextLayoutInfo for rendering and picking. Adds required glyphs to the texture atlas