spelling fixes (#18688)

* Fixes spelling of "Allow to" to "Allow one to"

and those variants:
Allows to -> Allows one to
allow to -> allow one to
allows to -> allows one to

* Fix "Let's -> Lets"

(and lower case variant.)

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update src/3rdParty/salomesmesh/inc/MED_Wrapper.hxx

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

* Update src/Base/PyObjectBase.cpp
Update src/App/ExtensionContainer.h
Update src/App/PropertyContainer.h

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

* Use gerund in user-facing texts.

* Use gerund for two more user-facing strings.

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

* Update src/Mod/Fem/App/FemMeshShapeNetgenObject.cpp

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

* Update src/Mod/Fem/App/FemMeshShapeNetgenObject.cpp

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

* Update src/Mod/Fem/App/FemMeshShapeNetgenObject.cpp

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

---------

Co-authored-by: Tobias Frost <tobi@debian.org>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

src/Mod/OpenSCAD/OpenSCADUtils.py

@@ -242,7 +242,7 @@ def callopenscadstring(scadstr,outputext='csg'):
 
 
 def reverseimporttypes():
-    '''allows to search for supported filetypes by module'''
+    '''allows one to search for supported filetypes by module'''
 
     def getsetfromdict(dict1, index):
         if index in dict1:

src/Mod/OpenSCAD/replaceobj.py

@@ -24,7 +24,7 @@ __author__ = "Sebastian Hoogen"
 __url__ = ["https://www.freecad.org"]
 
 '''
-This functions allows to replace an object in the feature hierarchy
+This functions allows one to replace an object in the feature hierarchy
 '''