Add severity argument to GoToDiagnostic actions (#33995)

This PR adds a `severity` argument so severity can be defined when
navigating through diagnostics. This allows keybinds like the following:

```json
{
  "] e": ["editor::GoToDiagnostic", { "severity": "error" }],
  "[ e": ["editor::GoToDiagnostic", { "severity": "error" }]
}
```

I've added test comments and a test. Let me know if there's anything
else you need!

Release Notes:

- Add `severity` argument to `editor::GoToDiagnostic`,
`editor::GoToPreviousDiagnostic`, `project_panel::SelectNextDiagnostic`
and `project_panel::SelectPrevDiagnostic` actions

crates/zed/src/zed/app_menus.rs

@@ -199,8 +199,11 @@ pub fn app_menus() -> Vec<Menu> {
                 MenuItem::action("Go to Type Definition", editor::actions::GoToTypeDefinition),
                 MenuItem::action("Find All References", editor::actions::FindAllReferences),
                 MenuItem::separator(),
-                MenuItem::action("Next Problem", editor::actions::GoToDiagnostic),
-                MenuItem::action("Previous Problem", editor::actions::GoToPreviousDiagnostic),
+                MenuItem::action("Next Problem", editor::actions::GoToDiagnostic::default()),
+                MenuItem::action(
+                    "Previous Problem",
+                    editor::actions::GoToPreviousDiagnostic::default(),
+                ),
             ],
         },
         Menu {

crates/zed/src/zed/quick_action_bar.rs

@@ -255,8 +255,11 @@ impl Render for QuickActionBar {
                             .action("Go to Symbol", Box::new(ToggleOutline))
                             .action("Go to Line/Column", Box::new(ToggleGoToLine))
                             .separator()
-                            .action("Next Problem", Box::new(GoToDiagnostic))
-                            .action("Previous Problem", Box::new(GoToPreviousDiagnostic))
+                            .action("Next Problem", Box::new(GoToDiagnostic::default()))
+                            .action(
+                                "Previous Problem",
+                                Box::new(GoToPreviousDiagnostic::default()),
+                            )
                             .separator()
                             .action_disabled_when(!has_diff_hunks, "Next Hunk", Box::new(GoToHunk))
                             .action_disabled_when(