Fix pre-existing spell-check failures blocking docs CI

The Spell Check (typos) job has been failing on master and every PR. Fix the two
real typos and allowlist the proper noun so the check passes:
- classical_physics.md: ContiunousCallback -> ContinuousCallback
- bvp_solve.md: prblem -> problem
- .typos.toml: allowlist `Lamba` (the surname in the Lamba & Rackauckas methods
  LambaEM / LambaEulerHeun; typos mis-flags it as "Lambda")

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: ChrisRackauckas

.typos.toml

@@ -1,5 +1,6 @@
 [default.extend-words]
 quations = "quations"
+Lamba = "Lamba"
 IIF = "IIF"
 padd = "padd"
 thr = "thr"

docs/src/examples/classical_physics.md

@@ -265,7 +265,7 @@ function double_pendulum_hamiltonian(udot, u, p, t)
         2sin(2β) * ((lα^2 - 2(1 + cos(β))lα * lβ + (3 + 2cos(β))lβ^2) / (3 - cos(2β))^2)]
 end
 
-# Construct a ContiunousCallback
+# Construct a ContinuousCallback
 condition(u, t, integrator) = u[1]
 affect!(integrator) = nothing
 cb = ODE.ContinuousCallback(condition, affect!, nothing,

docs/src/solvers/bvp_solve.md

@@ -99,7 +99,7 @@ Similar to `MIRK` methods, fully implicit Runge-Kutta methods construct nonlinea
 
 #### Gauss Legendre collocation methods
 
-The `Ascher` collocation methods are similar with `MIRK` and `FIRK` methods but have extension for BVDAE prblem solving, the error control is based on instead of defect control adaptivity.
+The `Ascher` collocation methods are similar with `MIRK` and `FIRK` methods but have extension for BVDAE problem solving, the error control is based on instead of defect control adaptivity.
 
   - `BoundaryValueDiffEqAscher.Ascher1` - A 1st stage Gauss Legendre collocation method with Ascher's error control adaptivity.
   - `BoundaryValueDiffEqAscher.Ascher2` - A 2nd stage Gauss Legendre collocation method with Ascher's error control adaptivity.