Hide user dropdown for current user

[gaspergrom]

Changes proposed ✍️

What

🤖 Generated by Copilot at 840ca57

This pull request prevents users from deleting or editing themselves in the user list view. It updates the v-if directives of the el-table-column and el-dropdown-item components in user-list-table.vue and user-list-toolbar.vue respectively.
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🤖 Generated by Copilot at 840ca57

v-if directive
hides buttons from oneself
autumn self-reflection

Why

How

🤖 Generated by Copilot at 840ca57

• Prevent current user from deleting or editing themselves in user list table (link, link)

Checklist ✅

• Label appropriately with Feature, Improvement, or Bug.
• Add screehshots to the PR description for relevant FE changes
• New backend functionality has been unit-tested.
• API documentation has been updated (if necessary) (see docs on API documentation).
• Quality standards are met.