Change diagnostic picker keybind to <space>d (#4229)

Also changes workspace diagnostic picker bindings to <space>D and
changes the debug menu keybind to <space>g, the previous diagnostic
picker keybind. This brings the diagnostic picker bindings more in
line with the jump to next/previous diagnostic bindings which are
currently on ]d and [d.

book/src/keymap.md

@@ -273,8 +273,8 @@ This layer is a kludge of mappings, mostly pickers.
 | `k`     | Show documentation for item under cursor in a [popup](#popup) (**LSP**) | `hover`                             |
 | `s`     | Open document symbol picker (**LSP**)                                   | `symbol_picker`                     |
 | `S`     | Open workspace symbol picker (**LSP**)                                  | `workspace_symbol_picker`           |
-| `g`     | Open document diagnostics picker (**LSP**)                              | `diagnostics_picker`                |
-| `G`     | Open workspace diagnostics picker (**LSP**)                             | `workspace_diagnostics_picker`
+| `d`     | Open document diagnostics picker (**LSP**)                              | `diagnostics_picker`                |
+| `D`     | Open workspace diagnostics picker (**LSP**)                             | `workspace_diagnostics_picker`      |
 | `r`     | Rename symbol (**LSP**)                                                 | `rename_symbol`                     |
 | `a`     | Apply code action  (**LSP**)                                            | `code_action`                       |
 | `'`     | Open last fuzzy picker                                                  | `last_picker`                       |

helix-term/src/keymap/default.rs

@@ -209,11 +209,11 @@ pub fn default() -> HashMap<Mode, Keymap> {
             "j" => jumplist_picker,
             "s" => symbol_picker,
             "S" => workspace_symbol_picker,
-            "g" => diagnostics_picker,
-            "G" => workspace_diagnostics_picker,
+            "d" => diagnostics_picker,
+            "D" => workspace_diagnostics_picker,
             "a" => code_action,
             "'" => last_picker,
-            "d" => { "Debug (experimental)" sticky=true
+            "g" => { "Debug (experimental)" sticky=true
                 "l" => dap_launch,
                 "b" => dap_toggle_breakpoint,
                 "c" => dap_continue,