feat(theme): add `text-danger`, override the class from bootstrap.css
feat(theme): add `text-danger`, override the class from bootstrap.css

Note: bootstrap css won't be used in the Laravel reboot, but for now
the class is there with a red tint that is too light for text.

fabd/kanji-koohii,fabd/kanji-koohii,kanji-koohii/kanji-koohii,fabd/kanji-koohii,fabd/kanji-koohii,kanji-koohii/kanji-koohii,fabd/kanji-koohii,kanji-koohii/kanji-koohii,kanji-koohii/kanji-koohii,fabd/kanji-koohii,kanji-koohii/kanji-koohii