[52232] relocated the Theme Editor menu item from Appearance to Tools for block themes. This commit relocates the Plugin Editor menu item from Plugins to Tools for block themes for a consistent workflow.
Both the Theme Editor and Plugin Editor menu items are renamed to "Theme File Editor" and "Plugin File Editor" respectively. Why? To better identify their purpose, i.e. to directly edit the code in the theme or plugin files. The rename is not limited to only block themes.
Follow-up to [52232].
Props poena, annezazu, audrasjb, clorith, courane01, costdev, dryanpress, desrosj, hellofromTonya, ipstenu, jameskoster, joen, johnbillion, joyously, manfcarlo, marybaum, pbiron, SergeyBiryukov, walbo, youknowriad.
Fixes#54382.
Built from https://develop.svn.wordpress.org/trunk@52406
git-svn-id: http://core.svn.wordpress.org/trunk@51998 1a063a9b-81f0-0310-95a4-ce76da25c4cd