docs: Fix spelling errors in code comments

Fixed multiple spelling errors in comments across the codebase:
- Changed "genral" to "general" in CPhysicalGeometry.cpp
- Changed "caount" to "count" in CPhysicalGeometry.cpp
- Changed "Initilize/initalize" to "Initialize/initialize" (3 occurrences)
- Changed "surronding" to "surrounding" (2 occurrences)
- Changed "Localice" to "Localize" in CPhysicalGeometry.cpp
These documentation-only changes improve code clarity and professionalism
with no impact on functionality.

Signed-off-by:  shbhmexe <shubhushukla586@gmail.com>

Author: shbhmexe

Common/include/geometry/primal_grid/CPrimalGrid.hpp

@@ -49,7 +49,7 @@ class CPrimalGrid {
   unsigned long GlobalIndex_DomainElement;
 
   std::unique_ptr<unsigned long[]> Nodes;    /*!< \brief Global node indices of the element. */
-  std::unique_ptr<long[]> Neighbor_Elements; /*!< \brief Vector to store the elements surronding this element. */
+  std::unique_ptr<long[]> Neighbor_Elements; /*!< \brief Vector to store the elements surrounding this element. */
 
   su2double Coord_CG[3] = {0.0}; /*!< \brief Coordinates of the center-of-gravity of the element. */
   su2double Volume;              /*!< \brief Volume of the element. */

Common/src/geometry/CPhysicalGeometry.cpp

@@ -4642,7 +4642,7 @@ void CPhysicalGeometry::SetElement_Connectivity() {
 
           if ((elem[iElem]->GetNeighbor_Elements(iFace) == -1) && (iElem < Test_Elem) &&
               FindFace(iElem, Test_Elem, first_elem_face, second_elem_face)) {
-            /*--- Localice which faces are sharing both elements ---*/
+            /*--- Localize which faces are sharing both elements ---*/
 
             elem[iElem]->SetNeighbor_Elements(Test_Elem, first_elem_face);
 
@@ -4666,7 +4666,7 @@ void CPhysicalGeometry::SetBoundVolume() {
       CheckVol = false;
 
       for (iElem = 0; iElem < nodes->GetnElem(Point); iElem++) {
-        /*--- Look for elements surronding that point --*/
+        /*--- Look for elements surrounding that point --*/
         cont = 0;
         iElem_Domain = nodes->GetElem(Point, iElem);
         for (iNode_Domain = 0; iNode_Domain < elem[iElem_Domain]->GetnNodes(); iNode_Domain++) {
@@ -4775,10 +4775,10 @@ void CPhysicalGeometry::ComputeNSpan(CConfig* config, unsigned short val_iZone,
   nSpan_loc = 0;
   if (nDim == 2) {
     nSpanWiseSections[marker_flag - 1] = 1;
-    // TODO (turbo) make it more genral
+    // TODO (turbo) make it more general
     if (marker_flag == OUTFLOW) config->SetnSpanWiseSections(1);
 
-    /*---Initilize the vector of span-wise values that will be ordered ---*/
+    /*---Initialize the vector of span-wise values that will be ordered ---*/
     SpanWiseValue[marker_flag - 1] = new su2double[1];
     for (iSpan = 0; iSpan < 1; iSpan++) {
       SpanWiseValue[marker_flag - 1][iSpan] = 0;
@@ -4792,7 +4792,7 @@ void CPhysicalGeometry::ComputeNSpan(CConfig* config, unsigned short val_iZone,
           if (config->GetMarker_All_TurbomachineryFlag(iMarker) != marker_flag) continue;
 
           /*--- loop to find the vertex that ar both of inflow or outflow marker and on the periodic
-           * in order to caount the number of Span ---*/
+           * in order to count the number of Span ---*/
           for (jMarker = 0; jMarker < nMarker; jMarker++) {
             if (config->GetMarker_All_KindBC(jMarker) != PERIODIC_BOUNDARY) continue;
 

SU2_CFD/src/solvers/CGradientSmoothingSolver.cpp

@@ -93,7 +93,7 @@ CGradientSmoothingSolver::CGradientSmoothingSolver(CGeometry *geometry, CConfig
     element_container[GRAD_TERM][EL_PYRAM2] = new CPYRAM6();
   }
 
-  /*--- For operations on surfaces we initalize the structures for nDim-1 ---*/
+  /*--- For operations on surfaces we initialize the structures for nDim-1 ---*/
   if (config->GetSmoothOnSurface()) {
     if (nDim == 2) {
       element_container[GRAD_TERM][EL_LINE] = new CLINE();

SU2_CFD/src/variables/CMeshVariable.cpp

@@ -34,7 +34,7 @@ CMeshVariable::CMeshVariable(unsigned long npoint, unsigned long ndim, CConfig *
   /*--- Store the dimensionality of the problem ---*/
   nDim = ndim;
 
-  /*--- Initalize the variables that will always be there in a problem with moving mesh ---*/
+  /*--- Initialize the variables that will always be there in a problem with moving mesh ---*/
   Mesh_Coord.resize(nPoint,nDim) = su2double(0.0);
   WallDistance.resize(nPoint) = su2double(1e-9);