chore: add editors config dirs to gitignore

[xepozz]

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[TimWolla]

This effectively is a duplicate of #7326.

[xepozz]

@TimWolla the last time an agreement was reached
#17642 (comment)

[NickSdot]

Was it ever considered to explicitly add the IDE directories? Jetbrains over time embraced adding specific files from the config directory to Git. They are now actively prompting to add files.

Dictionaries are a very good use case. Consider a typical source or test file in php-src. It is full of green inspection markers for terms such as strpos, intval, EXPECTF, lcname, etc. It is distracting. zend_compile.c, for instance, has 339 dictionary inspection results. It is impossible to tell which of these are real typos and which are expected.

I think it would greatly improve the quality of the code base if everyone working with an IDE shared things like this.

This could even be relatively easily automated using Git hooks to synchronise the list between IDE directories.

There are other good use cases, of course. Maybe something to explore?

Worth to note, the IDE directories still would contain a .gitignore to avoid accidental addtions.