Add minimize button to progress/prompt dialog windows

[mnorris14]

What

Adds swiftDialog's --windowbuttons min flag to Patchomator's two swiftDialog invocations:

• The main "Patchomator Progress" dialog (the mini progress window shown during discovery/verification/install)
• dialogTimeoutPrompt() (used for the "Replace label...?" and "Install Installomator?" prompts)

Also bumps VERSION from 1.2 to 1.2-om1 to distinguish this build.

Why

swiftDialog's --windowbuttons option controls which of the standard macOS title-bar window controls (close/minimize/zoom) are drawn on the dialog. Passing min adds just the yellow minimize button.

Today both dialogs are shown with --ontop and --moveable but no window controls at all, so there is no way for a user (or admin watching over someone's shoulder) to get the dialog out of the way during a run — it can be dragged around, but not minimized or hidden, and it will stay on top of everything else on screen for the whole run. For --install runs in particular, this can be a long-running, unattended-feeling window with no way to tuck it out of sight. Adding the minimize button gives users an unobtrusive way to temporarily dismiss the window without closing/canceling the underlying process.

What's intentionally unchanged

--ontop and --moveable are left exactly as they were on both invocations. This change only adds the ability to minimize; it does not change stacking behavior or make the dialogs any less "always on top" than before, and it does not add a close button.

Testing

Patched and rebuilt locally; the two --windowbuttons min additions and the version bump have been verified byte-for-byte against the pushed branch content.