Fix woman and man paths

[Grimpper]

Hello. The following patches fixes the Emacs woman and man procedures not inheriting the envrc environment.

The fix for woman is similar to the one done for the info-display-manual procedure, where we needed to flush it's cache.

On the other hand, the man command was a bit more tricky to solve. The issue was that the completing-read function that man uses, Man-completion-table, needs to inherit the environment. This can be solved advising it with envrc-propagate-environment, but since it's invoked from the minibuffer, envrc-mode mode will be disabled; and the wrapper will not inject the environment. In order to solve it, we need to remove the logic that prevents envrc-global-mode to enable envrc-mode in the minibuffer.

I hope this helps!

[Grimpper]

Closing this PR in favor of this 2 which allow to merge each change individually:

• fix: `woman' not providing completion from the loaded environment #98
• fix: `man' not providing completion from the loaded environment #99