[v2.0] Add toast notifications

[jaylikesbunda]

What's new (Author - fill this out)

Changed

• Added toast notification system

Removed

Verification (Author - fill this out)

• I have tested Primary device(s) (list exact HW + config): T-Deck Plus
• I have tested potentially affected devices (and/or list potential affected devices not available to you):
• I have wrapped device specific code with #ifdef CONFIG_... or similar: [ ] Yes / [ ] N/A
• I have updated Hugo Docs with any new or changed info for end users: [ ] Yes / [ ] N/A

Linked Issues

• Closes #

Checklist (Reviewer - don't fill this out)

• Code builds, flashes, and feature verified with no functional issues on listed device(s)
• Changes reviewed for unintended impact on other devices/targets

[jaylikesbunda]

@copilot resolve the merge conflicts in this pull request

[Copilot]

@copilot resolve the merge conflicts in this pull request

Merge conflicts resolved in commit 3a34d6e8. There were two conflicting files:

• main/core/glog.c: Kept our heap-based approach for deferred log storage (matching the existing malloc/free pattern).
• main/vendor/GPS/gps_logger.c: Kept toast_show("GPS log saved", TOAST_SUCCESS) inside the file-close block; the base branch had moved wd_free_dedupe_tables() and glog() outside the block (making them unconditional), so those duplicates from our branch were removed.