theme/gitline: harmonize `powerline.base` file(s)#2050

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gaelicWizard wants to merge 3 commits intoBash-it:masterfrom gaelicWizard:theme/powerline.base

+291-181

Commits on Feb 7, 2022

Commits on Nov 7, 2024

Merge branch 'master' into theme/powerline.base
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