chore(indev): Cleanup before working in double and triple click support

[C47D]

Description of the feature or fix

Use is_enabled instead, this removed a bunch of boolean negations. Found while studying indev for double and tiple click support.

Notes

• Update the Documentation if needed.
• Add Examples if relevant.
• Add Tests if applicable.
• If you added new options to lv_conf_template.h run lv_conf_internal_gen.py and update Kconfig.
• Run scripts/code-format.py (astyle needs to be installed) and follow the Code Conventions
• Mark the Pull request as Draft while you are working on the first version, and mark is as Ready when it's ready for review.
• When changes were requested, re-request review to notify the maintainers.
• Help us to review this Pull Request! Anyone can approve or request changes.

[C47D]

What is the policy of introducing new enums instead of magic numbers? I was planning to replace the magic values assigned to this flags of _lv_indev_t with enums.

uint8_t long_pr_sent : 1;
uint8_t reset_query : 1;
uint8_t disabled : 1;
uint8_t wait_until_release : 1;

[W-Mai]

LGTM