about_popup: Add current terminal size to Detected Environment section #4015

Job	Run time
Lint - Spellcheck (codespell, typos)	21s
Lint - PEP8 & more (ruff)	18s
Lint - Type consistency (mypy)	40s
Lint - Code format (black)	26s
Lint - Docstrings & docs sync (lint-docstring)	20s
Lint - Hotkeys & docs sync (lint-hotkeys)	18s
Install & test - CPython 3.7 (ubuntu), codecov	1m 2s
Lint - Commit text format (gitlint)	17s
Lint - Import order (isort)	23s
Ensure isolated PR commits	1m 30s
Install & test - PyPy 3.7 (ubuntu)	1m 20s
Install & test - PyPy 3.8 (ubuntu)	1s
Install & test - PyPy 3.10 (ubuntu)	1m 11s
Install & test - CPython 3.10 (ubuntu)	1m 4s
Install & test - CPython 3.11 (ubuntu)	57s
Install & test - CPython 3.11 (macos)	47s
Install & test - CPython 3.8 (ubuntu)	59s
Install & test - PyPy 3.9 (ubuntu)	1m 21s
Install & test - CPython 3.9 (ubuntu)	7m 33s
	20m 48s

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