feat: Add Word Blacklist Option/Setting to Prevent Unwanted Suggestions

[WHITE-KNIGHT5]

Edit:Just got to know that a request related to it already opened yesterday but that is not much explained + different language.

Please add a Word Blacklist feature that allows users to block specific words from appearing in keyboard suggestions because even if we delete them from suggestions they still appear again.

Problem:
Currently, LeanType sometimes/mostly show suggestions that are inappropriate, unwanted, or irrelevant for some users. Even they're deleted from suggestions they still appear in the suggestion bar, which negatively affects the typing experience.

Proposed Solution:
Add a Blocked Words / Word Blacklist setting where users can manually manage words they don't want to see.

Possible features:
Add or remove words from a custom blacklist
Prevent blacklisted words from appearing in suggestions and predictions

Long-press a suggested word → "Never suggest this word" option
Removes unwanted or sensitive words

Reference:
A similar feature is already available in FUTO Keyboard (FOSS). Please check the attached screenshot for reference.

Thank you for considering this feature request.

#screenshots:

[LeanBitLab]

seems a good feature

[AZADAYAZ]

I also requested this feature. I hope it gets implemented.

[vironite-23]

seems a good feature

If this feature is considered to be added, please add "Full Word" option so that when a word is added, we can choose whether or not all the words containing that word is gonna be block as well. For example, if we block the word "fuck" and the Full Word is disabled on that word, other words like "fucks, fucking, fucked" is gonna be block as well so we don't have to add them one by one. If it's enabled, only the word "fuck" is gonna be block and the variations is not.