Add icon sets for sizes 8, 12 and 16, remove old icons

crates/editor/src/editor.rs

@@ -2660,7 +2660,7 @@ impl Editor {
             enum Tag {}
             Some(
                 MouseEventHandler::new::<Tag, _, _>(0, cx, |_, _| {
-                    Svg::new("icons/zap.svg")
+                    Svg::new("icons/bolt_8.svg")
                         .with_color(style.code_actions_indicator)
                         .boxed()
                 })

crates/editor/src/element.rs

@@ -936,7 +936,7 @@ impl EditorElement {
                         cx.render(&editor, |_, cx| {
                             MouseEventHandler::new::<JumpIcon, _, _>(*key, cx, |state, _| {
                                 let style = style.jump_icon.style_for(state, false);
-                                Svg::new("icons/jump.svg")
+                                Svg::new("icons/arrow_up_right_8.svg")
                                     .with_color(style.color)
                                     .constrained()
                                     .with_width(style.icon_width)