fix: resolve localization issues in ContextManagementSettings

- Replace hardcoded 'Unlimited' text with proper translation key
- Remove unused 'unlimitedDescription' translation keys from all 18 language files
- Ensures consistent localization across all supported languages

Author: hannesrudolph

webview-ui/src/components/settings/ContextManagementSettings.tsx

@@ -240,7 +240,7 @@ export const ContextManagementSettings = ({
 						<span className="w-20 text-sm font-medium">
 							{(maxDiagnosticMessages !== undefined && maxDiagnosticMessages <= 0) ||
 							maxDiagnosticMessages === 100
-								? t("settings:contextManagement.diagnostics.maxMessages.unlimitedLabel") || "Unlimited"
+								? t("settings:contextManagement.diagnostics.maxMessages.unlimitedLabel")
 								: (maxDiagnosticMessages ?? 50)}
 						</span>
 						<Button

webview-ui/src/i18n/locales/ca/settings.json

@@ -497,8 +497,7 @@
 				"label": "Maximum diagnostic messages",
 				"description": "Maximum number of diagnostic messages to include per file. This limit applies to both automatic inclusion (when checkbox is enabled) and manual @problems mentions. Higher values provide more context but increase token usage.",
 				"resetTooltip": "Reset to default value (50)",
-				"unlimitedLabel": "Unlimited",
-				"unlimitedDescription": "All diagnostic messages will be included. Use with caution as this may significantly increase token usage."
+				"unlimitedLabel": "Unlimited"
 			}
 		},
 		"condensingThreshold": {