docs(updates): Link fixes and orphan image removals (#26925)

* docs(updates): Link fixes and orphan image removals
* docs(delete): Remove orphaned translations

docs/zh/test_cards/mc_07_vio.md

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-# Test MC_07 - VIO (Visual-Inertial Odometry)
-
-## Objective
-
-To test that external vision (VIO) works as expected
-
-## Preflight
-
-Disconnect all GPS / compasses and ensure vehicle is using VIO for navigation
-
-Ensure that the drone can go into Altitude / Position flight mode while still on the ground
-
-Ensure there are no other sources of positioning besides VIO:
-
-- [EKF2_OF_CTRL](../advanced_config/parameter_reference.md#EKF2_OF_CTRL): `0`
-- [EKF2_GPS_CTRL](../advanced_config/parameter_reference.md#EKF2_GPS_CTRL): `0`
-- [EKF2_EV_CTRL](../advanced_config/parameter_reference.md#EKF2_EV_CTRL): `15`
-- [SYS_HAS_MAG](../advanced_config/parameter_reference.md#SYS_HAS_MAG): `0`
-
-## Flight Tests
-
-❏ Altitude flight mode
-
-    ❏ Vertical position should hold current value with stick centered
-
-    ❏ Pitch/Roll/Yaw response 1:1
-
-    ❏ Throttle response set to climb/descent rate
-
-❏ Position flight mode
-
-    ❏ Horizontal position should hold current value with stick centered
-
-    ❏ Vertical position should hold current value with stick centered
-
-    ❏ Throttle response set to climb/descent rate
-
-    ❏ Pitch/Roll/Yaw response set to pitch/roll/yaw rates
-
-## 降落
-
-❏ Land in either Position or Altitude mode with the throttle below 40%
-
-❏ Upon touching ground, copter should disarm automatically within 2 seconds (default: see [COM_DISARM_LAND](../advanced_config/parameter_reference.md#COM_DISARM_LAND))
-
-## 预期成果
-
-- 当油门升高时，起飞应该是平稳的
-- Drone should hold altitude in Altitude Flight mode without wandering
-- Drone should hold position within 1 meter in Position Flight mode without pilot moving sticks
-- 在上述任何飞行模式中都不应出现振荡
-- 着陆时，直升机不应在地面上反弹