fix(i18n): repair Spanish catalogue placeholders and missing strings

- Fix %{Display language} placeholder mismatch so the language-switch
  notice resolves to the actual language name instead of leaving the
  raw token in the Spanish text.
- Translate the remaining English strings shown in the Setup Wizard
  Intro and CouchDB screens (missing setup/CouchDB copy, "Check server
  requirements", "Create/Connect to database and continue", etc.).
- Translate the Config Doctor's activation reason (previously spliced
  into the Spanish sentence as the raw English word "updated" or
  "you wanted(Thank you)!") by routing it through the catalogue at
  the two call sites that set it.
- Fix Spanish strings that kept English-style Title Case instead of
  sentence case, and route the "OK" button through the catalogue so it
  renders as "Aceptar".

Scope is limited to Spanish content plus the minimal code changes
needed to make two hard-coded strings translatable at all; no other
locale files were touched.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/modules/features/SettingDialogue/PaneHatch.ts

@@ -73,7 +73,7 @@ export function paneHatch(this: ObsidianLiveSyncSettingTab, paneEl: HTMLElement,
                     .setDisabled(false)
                     .onClick(() => {
                         this.closeSetting();
-                        eventHub.emitEvent(EVENT_REQUEST_RUN_DOCTOR, "you wanted(Thank you)!");
+                        eventHub.emitEvent(EVENT_REQUEST_RUN_DOCTOR, $msg("you wanted(Thank you)!"));
                     })
             );
         new Setting(paneEl)