Allow dictionary forms for non-kifuku and non-heiban words

[archiif]

Type:

• bug
• feature
• enhancement
• question

Environment:

• OS:

I'm going to open a PR to resolve the issue:

• yes
• no

Description:
Some "verbs" such as suru verbs don't really obey the kifuku/heiban binary rule.
For example:
阻止する= そ↓しする (https://www.wadoku.de/entry/view/3597174)
But right now, Migaku doesn't allow dictionary forms for non-kifuku or non-heiban words. So this is a problem if the verb is in its conjugated form.

For example, the following syntax would generate the correct popup (even though the pitch is incorrect):
阻止[そし,そしする;h]します

But the following syntax (which is the correct one), would fail:
阻止[そし,そしする;a]します