[TOOL IMPROVEMENT] Token Generator - addition for manual length entry

[uniQuk]

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This is a really simple and useful tool that I find myself using more and more. It can be a little bit fiddly using the slider sometimes when you require a specific length. A small improvement could be to also include a box/text where the length can be manually changed as well.

[sharevb]

hi @uniQuk and @CorentinTh , implemented in #913