fix(opencode-nvim)!: update API calls for version ^0.11

[TakiMoysha]

Description

Updated opencode.nvim configuration to support API changes in version 0.11

• toggle() → start()
• removed deprecated { submit = true } and { append = true } options from ask() and prompt() calls. New API replaces the opts params with trailing space behavior: ask("@this:", { submit = true}) => ask(@this:") (no space in the end), and prompt("buffer", { append = true }) => prompt("@buffer ") append space (as alternative .prompt("@buffer" .. APPEND))
• pinned plugin version to ^0.11. Space support appeared earlier in version 0.9

Additional Information

Breaking change: This update is compatible with opencode.nvim ^0.11. Users on older versions will need to update the plugin.

[github-actions]

Review Checklist

Does this PR follow the [Contribution Guidelines](development guidelines)? Following is a partial checklist:

Proper conventional commit scoping:

• If you are adding a new plugin, the scope would be the name of the category it is being added into. ex. feat(utility): added noice.nvim plugin

• If you are modifying a pre-existing plugin or pack, the scope would be the name of the plugin folder. ex. fix(noice-nvim): fix LSP handler error

• Pull request title has the appropriate conventional commit type and scope where the scope is the name of the pre-existing directory in the project as described above

• README is properly formatted and uses fenced in links with <url> unless they are inside a [title](url)

• Entry returns a single plugin spec with the new plugin as the only top level spec (not applicable for recipes or packs).

• Proper usage of opts table rather than setting things up with the config function.

• Proper usage of specs table for all specs that are not dependencies of a given plugin (not applicable for recipes or packs).