Adds diffWithPrevious to editor context menu

Adds diffWithWorking to editor context menu
Renames diffWithPrevious for better clarity with new behavior
Renames diffWithWorking, diffLineWithPrevious, & diffLineWithWorking for better clarity

package.json

@@ -309,22 +309,22 @@
         "commands": [
             {
                 "command": "gitlens.diffWithPrevious",
-                "title": "Diff Commit with Previous",
+                "title": "Compare with Previous Commit",
                 "category": "GitLens"
             },
             {
                 "command": "gitlens.diffLineWithPrevious",
-                "title": "Diff Commit (line) with Previous",
+                "title": "Compare Line with Previous Commit",
                 "category": "GitLens"
             },
             {
                 "command": "gitlens.diffWithWorking",
-                "title": "Diff Commit with Working Tree",
+                "title": "Compare with Working Tree",
                 "category": "GitLens"
             },
             {
                 "command": "gitlens.diffLineWithWorking",
-                "title": "Diff Commit (line) with Working Tree",
+                "title": "Compare Line with Working Tree",
                 "category": "GitLens"
             },
             {
@@ -500,6 +500,16 @@
                     "group": "1_gitlens@3"
                 },
                 {
+                    "command": "gitlens.diffWithPrevious",
+                    "when": "editorTextFocus && config.gitlens.menus.diff.enabled && gitlens:enabled",
+                    "group": "1_gitlens-file@1"
+                },
+                {
+                    "command": "gitlens.diffWithWorking",
+                    "when": "editorTextFocus && config.gitlens.menus.diff.enabled && gitlens:enabled",
+                    "group": "1_gitlens-file@2"
+                },
+                {
                     "command": "gitlens.toggleBlame",
                     "when": "editorTextFocus && gitlens:enabled",
                     "group": "2_gitlens@1"