Prepares the **4.1.1** patch release by cherry-picking important
bug/build fixes that landed on `main` since `4.1.0`, plus one
previously-unmerged fix. Features, refactors, algorithm changes,
benchmarks, docs-site infra, and dependency upgrades from `main` are
intentionally excluded.

### Included fixes

**Bug / correctness**
- Fix feature matching slowdown from process-global omp critical in
RANSAC (#4553) — restores the ~4–6x matching perf regressed in 4.1.0
- Fix: rescale already-undistorted images when `max_image_size` is
provided (#4512)
- Load mapper database lazily instead of at GUI startup (#4501) *(see
note below)*
- Show image/point viewer metadata when images are missing on disk
(#4546)

**Build / packaging**
- Fix missing SVG icons in Windows binaries (#4496)
- Fix Caspar CUDA build with MSVC forced includes (#4481)
- Fail Caspar build early on CUDA arch < 7.0 (#4495)
- Fix glog color support version detection (#4479)

**GUI**
- Tint UI icons to palette for dark theme legibility (#4478)

**Docs**
- Document quaternion order (wxyz vs xyzw) in `read_rig_config` binding
(#4526)
- Fix stale usage example in `IncrementalMapper` doc comment (#4531)
- Add Fedora build instructions to `install.rst` (#4509)
- Fix typos in user-facing help string and FAQ (#4549)

**Previously unmerged**
- Fix misspelled pycolmap enum name `GPSTransfromEllipsoid` →
`GPSTransformEllipsoid` (#4551)

### ⚠️ Breaking change
#4551 removes `pycolmap.GPSTransfromEllipsoid` (present since ≤4.1.0)
with **no** backward-compatible alias. Downstream code must switch to
`pycolmap.GPSTransformEllipsoid`. This is unusual for a patch release
and must be highlighted in the 4.1.1 release notes.

### Notes
- #4501 required a manual conflict resolution: it was authored on top of
the GUI mapper-selection feature (#4487), which is **not** part of this
patch. The dependency on `UpdateMapperControls()` / `mapper_type_` was
removed and replaced with the 4.1.0 baseline's existing control-state
handling; the net behavior (no database read at GUI startup / project
reset) is preserved.
- All other commits cherry-picked cleanly (`-x` references retained).

### Still TODO before tagging
- [ ] Version bump to 4.1.1
- [ ] CHANGELOG entry (incl. the breaking-change callout)
- [ ] Full build + test run across platforms (CI)

---------

Co-authored-by: WhuAegeanSea <whuaegeansea@gmail.com>
Co-authored-by: Shaohui Liu <b1ueber2y@gmail.com>
Co-authored-by: Behnam Asadi <behnam.asadi@gmail.com>
Co-authored-by: Mohammad Ali <m.aliadnanrauf@gmail.com>

## Summary

- `exe/sfm.cc`: "follwoing" → "following" in the `pose_prior_mapper`
`--overwrite_priors_covariance` help text.
- `doc/faq.rst`: "conditiions" → "conditions".