Add Chat Settings UI and Pro Forwarding (config, dialogs integration, strings)

[Rocket-Space]

Motivation

• Provide user-configurable chat/contextual menu options and client-side "Pro Forwarding" features with persistent configuration.
• Allow repeated sends and optional confirmation for multi-forward workflows while keeping values clamped to safe limits.

Description

• Add SpaceGramChatSettingsActivity to expose contextual menu toggles and Forward Pro settings with repeat-count controls and confirmation dialogs.
• Extend SpaceGramConfig with new context toggles (contextShowUserId, contextSaveMediaQuick, contextCopyMessageLink, contextPinShortcuts, contextForwardProToggle) and forward options (forwardProEnabled, forwardProMultipleOption, forwardProConfirmAlert, forwardProDrawingMulti, forwardProRepeatCount) plus clampRepeatCount and persistence logic in loadConfig/saveConfig.
• Integrate the chat settings entry into SpaceGramSettingsActivity and update DialogsActivity to use a new sendSelectedDialogsWithProForward helper that applies repeat logic and confirmation before delegating sends.
• Add localized string resources (English and Spanish) for the new UI and features, and update the app name to include a rocket emoji.

Testing

• Ran ./gradlew assembleDebug, which completed successfully.
• Ran unit tests with ./gradlew test, which passed.
• Ran static checks with ./gradlew lint, which completed without errors.

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Codex Task

[chatgpt-codex-connector]

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