feat: Vue SDK - upgrade vue to version 3.5.x

[mrudatsprint]

Issue:
Linear_ISSUE_LINK

Description:
upgrade vue to version 3.5.x

[Copilot]

Pull request overview

This PR upgrades the Vue SDK to the Vue 3.5.x ecosystem and refreshes the Vue SDK’s build/test toolchain to newer Vite/Vitest/Sass versions, aligning the package with current Vue 3.5+ dependencies.

Changes:

• Bump Vue SDK peer/dev dependencies to Vue >= 3.5.0 (and update associated tooling: Vite, Vitest, vue-tsc, vite-plugin-dts, etc.).
• Adjust the Vue SDK’s Vite library build output to ensure the emitted CSS is named style.css.
• Migrate SFC Sass usage from deprecated @import to @use.

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
yarn.lock	Locks updated transitive dependency graph for Vue 3.5.x + updated toolchain (Vite/Vitest/etc.).
packages/sdk-vue/package.json	Updates Vue peer/dev dependency ranges and upgrades build/test tooling versions.
packages/sdk-vue/vite.config.ts	Adds Rollup output naming logic to emit style.css for the SDK’s CSS bundle.
packages/sdk-vue/src/components/FusionAuthRegisterButton/FusionAuthRegisterButton.vue	Replaces Sass @import with @use for shared button styles.
packages/sdk-vue/src/components/FusionAuthLogoutButton/FusionAuthLogoutButton.vue	Replaces Sass @import with @use for shared button styles.
packages/sdk-vue/src/components/FusionAuthLoginButton/FusionAuthLoginButton.vue	Replaces Sass @import with @use for shared button styles.
packages/sdk-vue/src/components/FusionAuthAccountButton/FusionAuthAccountButton.vue	Replaces Sass @import with @use for shared button styles.

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