fix: rename compose "Reload" action to "Rebuild"

[ANSUJKMEHER]

Summary

Renames the compose "Reload" action button, confirmations, tooltips, and toast messages to "Rebuild" on the Compose general page.

Problem

As reported in #4666, the terminology "Reload" is highly misleading. Users expect a lightweight container reload or restart, but the button actually performs a full compose redeployment/rebuild. In the backend:

• The UI triggers the redeploy mutation.
• The queue worker executes rebuildCompose().
• The command generated executes docker compose -p <appName> -f <composePath> up -d --build --remove-orphans.

Because the --build flag is present, Docker rebuilds the images, which wipes any custom/manual container modifications made directly in the terminal. The tooltip stating "Reload the compose without rebuilding it" was factually incorrect.

Solution

• Renamed the button label from Reload to Rebuild.
• Updated confirmation dialog title to Rebuild Compose and description to "Are you sure you want to rebuild this compose?".
• Corrected success toast to "Compose rebuilt successfully" and error toast to "Error rebuilding compose".
• Updated tooltip to "Rebuilds the compose without downloading the source code" to correctly describe its behavior (analogous to the Application page rebuild flow and tooltip description).

Closes #4666