[FL-3332] Autolock fixes

[portasynthinca3]

What's new

• A desktop icon that shows up when a CLI session is active
• Autolock inhibition when a CLI session is active (that includes RPC-over-USB sessions) - fixes FL-3332 and Inhibit automatic screen locking when connected via USB CDC #3296
• Always locks the device on boot if a PIN code is set irregardless of the RTC "Locked" flag - fixes [Request] - Require PIN on cold boot #3900
• Adds a crossed out lock icon to tell the user that autolocking is currently inhibited

Verification

• Set up a PIN and 30s autolocking

Fix A:

• While the device is unlocked, open a CLI session
• While the device is still unlocked, press the back button to reset the inactivity timer, start a stopwatch at the same exact moment
• Verify that the CLI session is still active after 30 seconds
• Verify that there's a CLI icon on the desktop
• Terminate the CLI session
• Verify that the device locks itself after 30 seconds

Fix B:

• Unlock the device, press the back button to reset the inactivity timer, start a stopwatch at the same exact moment
• While the device is still unlocked, run ./fbt flash_usb_full such that the process of uploading the files crosses the 30-second mark (the timing is tricky to get right, i admit)
• Verify that the upload is not interrupted

Fix C:

• Unlock the device, press the back button to reset the inactivity timer, start a stopwatch at the same exact moment
• Connect to the device via qFlipper or Flipper Lab
• While the device is still unlocked, update the firmware such that the process of uploading the files crosses the 30-second mark (again, kinda tricky)
• Verify that the upload is not interrupted

Fix D:

• Power-cycle the device using all available methods (soft reset, hard reset, reboot via settings, power off and on via settings)
• Verify that the device locks itself upon startup no matter the state that it was in prior to it

Checklist (For Reviewer)

• PR has description of feature/bug or link to Confluence/Jira task
• Description contains actions to verify feature/bugfix
• I've built this code, uploaded it to the device and verified feature/bugfix

[github-actions]

Compiled f7 firmware for commit fc4d555f:

• 📦 Update package
• 📥 DFU file
• ☁️ Web/App updater
• 📊 Size report

[Devnol]

Lmao I actually forgot to report this other bug I found but it looks like you caught it too. Leaving the device idle while connected with RPC will autolock it and drop the RPC. The workaround I found was actually to enter any app (e.g. NFC) and just sit in that screen which prevented the autolock (dunno if that's also a bug or not, seems like intended to me).

[github-actions]

PVS-Studio report for commit 607ed487:

• Report

[skotopes]

Please fix merge conflict