Touying 0.3.2

• fix critical bug: fix is-sequence function, make grid and table work correctly in touying
• theme: add aqua theme, thanks for pride7
• theme: make university theme more configurable
• refactor: don't export variable s by default anymore, it will be extracted by register function (Breaking Change)
• meta: add categories and template config to typst.toml for Typst 0.11