gui: logo & version name updates for 21st Capital #3

Job	Run time
linter	37s
linter_gui	1m 53s
unit_tests (1.63, ubuntu-latest)	2m 18s
unit_tests (1.63, macOS-latest)	1m 48s
unit_tests (1.63, windows-latest)	3m 20s
unit_tests (nightly, ubuntu-latest)	1m 1s
unit_tests (nightly, macOS-latest)	1m 4s
unit_tests (nightly, windows-latest)	1m 51s
unit_tests_gui (1.70.0, ubuntu-latest)	3m 52s
unit_tests_gui (1.70.0, macOS-latest)	2m 43s
unit_tests_gui (1.70.0, windows-latest)	5m 58s
unit_tests_gui (nightly, ubuntu-latest)	2m 53s
unit_tests_gui (nightly, macOS-latest)	2m 14s
unit_tests_gui (nightly, windows-latest)	6m 10s
	37m 42s

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