ENH: improved wait status and positioner timeout messages

[ZLLentz]

Description

• Refactor TyphosStatusThread to give clearer and more detailed information (may count as API break)
• Change status thread behavior: thread timeout doesn't count as a failure, thread will continue to watch status until it eventually succeeds or fails.
• Adjust timeout messages to be more friendly (a positioner widget timeout doesn't mean your system is broken)
• Adjust timeout messages to disappear once a successful move completes
• More consistently pass through status failure exception messages to the positioner widget
• Give more detailed information about the timeout when it occurs

Motivation and Context

• Some motors in prod here are timing out and scaring/confusing people consistently
• There are always lots of questions about what the timeout is or where it comes from
• https://jira.slac.stanford.edu/browse/ECS-5454

How Has This Been Tested?

• Interactively, extensively, using a sim IOC
• Added/adjusted unit tests
• Asked for opinions on the slack channel

Where Has This Been Documented?

Here only

Screenshots (if appropriate):

Friendly (doesn't say error) and verbose (says the timeout in tooltip) timeout message

Goes away once the move completes

Normal errors propagate from the status if available

Pre-merge checklist

• [x] Code works interactively
• [x] Code contains descriptive docstrings, including context and API
• [x] New/changed functions and methods are covered in the test suite where possible
• [x] Code has been checked for threading issues (no blocking tasks in GUI thread)
• [x] Test suite passes locally
• [x] Test suite passes on GitHub Actions
• [x] Ran docs/pre-release-notes.sh and created a pre-release documentation page
• [x] Pre-release docs include context, functional descriptions, and contributors as appropriate

[ZLLentz]

The CI here is going to need a close look...

[ZLLentz]

offline tests py39: all passing online tests py39 conda: one failure, widgets not cleaned up all other online tests: segfault on something somewhat adjacent to what I worked on here

[ZLLentz]

Switching to a simpler ticket in attempt to isolate the problem

[ZLLentz]

I'm going to make some more small adjustments here:

• Round the timeout up to the nearest second
• Put the calculation entirely into the mouseover text, not into the main text
• Add a pre-release page

And then I'll solicit some opinions

[tangkong]

I only see 5 instances of TyphosStatusThread in our org, all of which seem to be covered in this PR.