feat(lsp): tweak lsp diagnostics related keybindings

- Bind consult-lsp-diagnostics to C-c C-\ as it is visually less
  intrusive, and scoped to only the current workspace.
- Bind helm-lsp-diagnostics to C-c \ which includes diagnostics from all
  active workspaces.

modules/lsp/siren-consult-lsp.el

@@ -12,7 +12,8 @@
 (use-package consult-lsp
   :bind
   (:map lsp-mode-map
-        ("C-t" . consult-lsp-file-symbols)))
+        ("C-t" . consult-lsp-file-symbols)
+        ("C-c C-\\" . consult-lsp-diagnostics)))
 
 (provide 'siren-consult-lsp)
 ;;; siren-consult-lsp.el ends here

modules/lsp/siren-helm-lsp.el

@@ -12,10 +12,10 @@
 (use-package helm-lsp
   :after (helm-global-bindings)
   :bind
-  ("C-c '" . helm-lsp-workspace-symbol)
-  ("C-c C-'" . helm-lsp-workspace-symbol)
-  ("C-c \\" . helm-lsp-diagnostics)
-  ("C-c C-\\" . helm-lsp-diagnostics))
+  (:map lsp-mode-map
+        ("C-c '" . helm-lsp-workspace-symbol)
+        ("C-c C-'" . helm-lsp-workspace-symbol)
+        ("C-c \\" . helm-lsp-diagnostics)))
 
 (provide 'siren-helm-lsp)
 ;;; siren-helm-lsp.el ends here