[FEATURE] Disable snippet expansion when IME is on

[RyotaUshio]

Thank you for maintaining this important plugin for all who do math in Obsidian. I have a suggestion which will be beneficial for those who use IME.

Description of the Problem

When I type "Vimキー" (which means "Vim keys" in Japanese), the keystroke looks like this:

Shift+V, i, m, (Turn on IME), k, i, -, (space to convert hiragana to katakana)

Then, the m before turning on the IME and k after that triggers the default mk snippet, and it results in the following, which is unwanted:

Vi$きー$

Description of the Solution

I think this problem can be eliminated by disabling expanding snippets while IME is on, i.e. when view.composing is true.

Additional

None

[artisticat1]

Hi, thanks for raising an issue!

Issues relating to IME input have been raised in the past (#52, #213, #191). However, I have little knowledge of IME input methods and no easy way to test/debug a solution.

From your other plugins, it looks like you're familiar with CodeMirror. If you're able/willing, I'd happily accept a PR solving this issue! (If so, there's some discussion in the previously linked issues that may be of relevance.)

[lunarythia]

For those who find this issue in the future, I changed the first few lines to

	{trigger: "mk", replacement: "$$0$", options: "tw"},
	{trigger: "dm", replacement: "$$\n$0\n$$", options: "tw"},

because I personally found the automatic mk and dm to be annoying. I removed the A from options, so that you need to hit Tab in order to trigger the snippet.