Add Quick Chat option under the Defend section: "Build SAM Launchers!"

## Purpose
- Add a new option that provides users the ability to send others a message to "Build SAM Launchers!"

## Objectives
- Create new string.
- Create new UI option shown in the Defend section.

## Description
- This matches the existing Defend > "Build Defense Posts!"

## Assignment
- I'd like to be assigned to this issue and work on it myself
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Discord Name: [jamison__]

Start by locating the Quick Chat UI and the Defend section, then trace the existing "Build Defense Posts!" option as the implementation reference. Add the new string and matching "Build SAM Launchers!" option. Done means the option appears under Defend and sends the intended message when selected.

Written by the indexing model from the issue text.