v1.25.7

Reduce false positives when guessing languages

v1.25.6 introduced the new feature: "detect multiple languages in the clipboard
input". This release adds 3 configuration parameters which can help to reduce
false positives when Tp-Note guesses languages:

```toml
[base_scheme.tmpl]
filter.get_lang.language_candidates = [ "en", "fr", "de" ]
filter.get_lang.relative_distance_min = 0.3
filter.get_lang.consecutive_words_min  = 7
filter.get_lang.words_total_percentage_min = 10
```

Please consult Tp-Note's Manpage for more information on how to fine-tune the
recognition algorithm by modifying the above default values.