ZEVA 2: Update ZEV Models tabs

**Describe the task**
Update the tab structure on the ZEV Models page to reflect the lifecycle of vehicle models.
Replace the current active and inactive tabs with:
- Validated
- Submitted
- Inactive

**Purpose**
1. Improve clarity of model lifecycle
2. Prevent incorrect grouping of models
3. Simplify navigation

**Acceptance Criteria**
- [x] Tab Structure: Three tabs are displayed - Validated/ Submitted/ Inactive

- [x] Validated Tab: Contains all models with status "Validated" that represents finalized and approved models

- [x] Submitted Tab: Contains all models that
- Have been submitted
- Are not Validated
- Are not Inactive
- Includes models in intermediate statuses (e.g., "Returned to Supplier", etc.)
- Represents models that are still in progress or under review

- [x] Inactive Tab: Contains only models that:
- Were previously active
- Have been explicitly marked as Inactive

- [x] General Behavior: Each model appears in only one tab/ No changes to existing data or statuses

**Additional context**
This change is based on user testing and stakeholder alignment, where it was agreed that vehicle models should be grouped into three lifecycle states: Validated, Submitted, and Inactive.
Currently, newly submitted models (that are still in progress) may incorrectly appear under Inactive, which creates confusion and misrepresents their status.