v0.11.31 added `<depends>com.intellij.spellchecker</depends>` after
strykelang's port. That works on strykelang's 2025.2 platform (where
spellchecker ships as a separate module needing the depends), but
fails on zshrs's 2024.2.4 platform — there spellchecker is embedded
in the main platform JAR and there's no separately-installable
plugin ID by that name. Plugin verifier rejects with:

    Plugin zshrs depends on unknown plugin com.intellij.spellchecker

Fix: drop the depends tag for zshrs. The `spellchecker.support` EP
registration still works because the SpellcheckingStrategy class and
the EP are both on the 2024.2.4 platform classpath without any
declaration.

When zshrs upgrades platformVersion to 2025.x, both the depends tag
AND a `bundledModule("intellij.spellchecker")` build.gradle.kts entry
will need to come back. Inline comment in plugin.xml documents this.