Add colors for vim mode in One theme (#56662)

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Release Notes:

- Update vim mode colors on One theme

# Screenshots:
## Dark

### Vim:
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/5d74753e-d79f-4507-874e-eee8e8ad77de"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/cf3a1945-1a14-48a8-aeb2-ed1a525f91b7"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/77b83ff3-ee1c-465c-a783-4e1deefbe65b"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/2e4ebb69-7bfc-407c-b04e-d4a8fc6df220"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/2d736682-54c1-4db3-9fd1-9ab72b1e1497"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/d796c7a9-c8c9-4bc8-81de-0a44f8b5b0e3"
/>

### Helix:
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/9de5d340-db45-4597-b3fe-2ea503f11909"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/fcdce0e4-3a90-44da-80ff-6d524495dfe8"
/>

## Light

### Vim:
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/34b74e45-4bb4-4388-b7de-50351bf3860c"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/3a66fa4b-0911-4a02-931a-1dda2cf0a33c"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/7bd4492d-4dec-4f1d-b05c-7e60ecc8d549"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/b510107d-39d5-4841-9859-ed27261c9809"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/fb80f295-dcc6-4a73-8d65-15dc133eb3ce"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/d21249ce-fd29-48a3-9c0f-e92e1aacba36"
/>

### Helix:
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/f748cfb4-4584-481b-b880-e77b6be92041"
/>
<img width="338" height="28" alt="image"
src="https://github.com/user-attachments/assets/5cad3bf0-591d-4436-82a6-cb65af9f9be7"
/>

assets/themes/one/one.json

@@ -104,6 +104,14 @@
         "version_control.deleted": "#e06c76ff",
         "version_control.conflict_marker.ours": "#a1c1811a",
         "version_control.conflict_marker.theirs": "#74ade81a",
+        "vim.normal.background": "#485e82",
+        "vim.insert.background": "#825b48",
+        "vim.visual.background": "#488251",
+        "vim.replace.background": "#827d48",
+        "vim.visual_line.background": "#488268",
+        "vim.visual_block.background": "#488276",
+        "vim.helix_normal.background": "#485e82",
+        "vim.helix_select.background": "#488251",
         "conflict": "#dec184ff",
         "conflict.background": "#dec1841a",
         "conflict.border": "#5d4c2fff",
@@ -516,6 +524,14 @@
         "version_control.word_added": "#2EA04859",
         "version_control.word_deleted": "#F85149CC",
         "version_control.deleted": "#e06c76ff",
+        "vim.normal.background": "#b0c8e8",
+        "vim.insert.background": "#e8c0a8",
+        "vim.visual.background": "#b0dcb8",
+        "vim.replace.background": "#e0dcb0",
+        "vim.visual_line.background": "#b0dccc",
+        "vim.visual_block.background": "#b0d4dc",
+        "vim.helix_normal.background": "#b0c8e8",
+        "vim.helix_select.background": "#b0dcb8",
         "conflict": "#a48819ff",
         "conflict.background": "#faf2e6ff",
         "conflict.border": "#f4e7d1ff",