Fix various typos throughout the codebase

src/Mod/Assembly/App/AssemblyObject.cpp

@@ -510,7 +510,7 @@ std::vector<App::DocumentObject*> AssemblyObject::getJoints(bool updateJCS, bool
         auto* part1 = getObjFromProp(joint, "Part1");
         auto* part2 = getObjFromProp(joint, "Part2");
         if (!part1 || !part2 || part1->getFullName() == part2->getFullName()) {
-            // Remove incomplete joints. Left-over when the user delets a part.
+            // Remove incomplete joints. Left-over when the user deletes a part.
             // Remove incoherent joints (self-pointing joints)
             if (delBadJoints) {
                 getDocument()->removeObject(joint->getNameInDocument());

src/Mod/Assembly/App/BomObject.cpp

@@ -281,7 +281,7 @@ std::string Assembly::BomObject::getText(size_t row, size_t col)
     if (cell) {
         cell->getStringContent(cellName);
 
-        // getStringContent is addind a ' before the string for whatever reason.
+        // getStringContent is adding a ' before the string for whatever reason.
         if (!cellName.empty() && cellName.front() == '\'') {
             cellName.erase(0, 1);  // Remove the first character if it's a '
         }

src/Mod/Assembly/CommandCreateView.py

@@ -632,7 +632,7 @@ class TaskAssemblyCreateView(QtCore.QObject):
         self.alignMode = "Custom"
         self.selectingFeature = True
         # We use greedy selection to prevent that clicking again on the solid
-        # clears selection before trying to select the whole assemly
+        # clears selection before trying to select the whole assembly
         Gui.Selection.setSelectionStyle(Gui.Selection.SelectionStyle.GreedySelection)
         self.enableDragger(False)
         self.form.LabelAlignDragger.setVisible(True)

src/Mod/Assembly/Gui/ViewProviderAssembly.cpp

@@ -908,7 +908,7 @@ void ViewProviderAssembly::onSelectionChanged(const Gui::SelectionChanges& msg)
 
 bool ViewProviderAssembly::onDelete(const std::vector<std::string>& subNames)
 {
-    // Delete the assembly goups when assembly is deleted
+    // Delete the assembly groups when assembly is deleted
     for (auto obj : getObject()->getOutList()) {
         if (obj->getTypeId() == Assembly::JointGroup::getClassTypeId()
             || obj->getTypeId() == Assembly::ViewGroup::getClassTypeId()