examples: shorten subfolders' names

[mguetschow]

Contribution description

Shorten some subfolder names in the examples directory to make them less verbous:

• examples/essentials => examples/basic
• examples/advanced_examples/ => examples/advanced
• examples/networking/bluetooth_low_energy/misc_ble_examples => examples/networking/ble/misc
• examples/networking/gnrc_networking => examples/networking/gnrc
• examples/networking/core_resource_directory => examples/networking/cord
• examples/language_bindings/{officially,community}_supported => examples/lang_support/{official,community}

I'm not particularly happy with language_bindings as name either, but could not come up with a shorter one. Maybe language_support would be better although not much shorter?

Testing procedure

Check if CI still builds all examples, check working links in examples/README.md

Issues/PRs references

Follow-up of #21135 by @AnnsAnns

[riot-ci]

Murdock results

✔️ PASSED

9a45c30 examples: shorten subfolders' names

Success	Failures	Total	Runtime
10271	0	10271	09m:32s

Artifacts

• Documentation preview

[AnnsAnns]

I like this change, with my PR I wanted to stay 1:1 with the category titles but yours sound better as folder names 😄 Thank you for putting so much effort into refining my stuff!

[kaspar030]

I'm not particularly happy with language_bindings as name either, but could not come up with a shorter one. Maybe language_support would be better although not much shorter?

Maybe just lang?

[mguetschow]

Maybe just lang?

I tried to have the high-level ones a bit more speaking. But I'm also fine with lang, but would then also propose net instead of networking (and maybe basic instead of essentials). Any other opinions?

[OlegHahm]

Sorry, for the bunch of unrelated findings. Besides these cosmetics: ACK from my side.

[mguetschow]

@OlegHahm Thanks for having a detailed read-through! Fixed all the typos (borader is a nice one) and squashed directly 😈

[OlegHahm]

I used or LINE in $(git show | grep '^+' | grep -oE 'examples[^*,)$" ]*'); do ls -lah ${LINE} > /dev/null ; done` to get a quick overview about potentially invalid path names and found one more case of a broken link.

[OlegHahm]

Couldn't spot any issues with the latest state so I dare to give an ACK. 👍

[mguetschow]

Thanks for your thorough review!