zh-cn: Partially translated files

[queengooborg]

While going through and formatting all files, I ran across the following files that are partially or fully untranslated. These files will probably needed to be resynchronized with upstream, or deleted.

### Games
- [x] Games/Techniques/3D_on_the_web#where_to_go_next #17729
- [x] Games/Techniques/2D_collision_detection #17738
- [x] Games/Techniques/3D_collision_detection #16501
- [x] Games/Techniques/Control_mechanisms #17728
- [x] Games/Techniques/Control_mechanisms/Mobile_touch #17754

### Mozilla
- [x] Mozilla/Add-ons/WebExtensions/API/runtime/sendMessage #16724
- [x] Mozilla/Add-ons/WebExtensions/API/webNavigation/onDOMContentLoaded #16855
- [x] Mozilla/Add-ons/WebExtensions/Chrome_incompatibilities #16945
- [x] #16633
- [x] Mozilla/Add-ons/WebExtensions/Working_with_the_Tabs_API #16734
- [x] https://github.com/mdn/translated-content/pull/15581

### Web
- [x] Web/Accessibility/An_overview_of_accessible_web_applications_and_widgets #16956
- [x] Web/API/HTMLAnchorElement/hash #16844
- [x] Web/API/HTMLAnchorElement/password #16844
- [x] Web/API/HTMLAnchorElement/pathname #16844
- [x] Web/API/HTMLAnchorElement/username #16835
- [x] Web/API/HTMLBodyElement #16782
- [x] Web/API/HTMLInputElement #17821
- [x] Web/API/Intersection_Observer_API #17222
- [x] https://github.com/mdn/translated-content/pull/15325
- [x] https://github.com/mdn/translated-content/pull/14923
- [x] https://github.com/mdn/translated-content/pull/14819
- [x] https://github.com/mdn/translated-content/pull/16482
- [x] https://github.com/mdn/translated-content/pull/14870
- [x] #15426
- [x] https://github.com/mdn/translated-content/pull/14663
- [x] https://github.com/mdn/translated-content/pull/15444
- [x] https://github.com/mdn/translated-content/pull/16129
- [x] #14491
- [x] #16790
- [x] https://github.com/mdn/translated-content/pull/15582
- [x] https://github.com/mdn/translated-content/pull/16525
- [x] Web/CSS/CSS_colors/Applying_color #17421
- [x] Web/CSS/CSSOM_view/Coordinate_systems #17631
- [x] Web/CSS/CSS_flexible_box_layout/Relationship_of_flexbox_to_other_layout_methods #18463
- [x] Web/CSS/CSS_flexible_box_layout/Typical_use_cases_of_flexbox#form_controls #18305
- [x] Web/CSS/CSS_fonts/OpenType_fonts_guide#font_feature_settings #18122
- [x] Web/CSS/CSS_shapes/From_box_values #17459
- [x] Web/CSS/Layout_cookbook/Column_layouts #20407
- [ ] #21054
- [x] Web/CSS/column-rule-color #18788
- [x] Web/CSS/column-rule-style #19013
- [x] Web/CSS/column-rule-width #18792
- [x] Web/CSS/font-variation-settings #20378
- [x] Web/CSS/@font-face/font-style #21758
- [x] Web/CSS/@font-face/src #21757
- [x] Web/CSS/max-height #18661
- [x] Web/API/Element/touchend_event #18663
- [x] Web/API/KeyboardEvent #22156
- [x] Web/API/HTMLFormElement #22912
- [x] Web/API/HTMLParagraphElement #20694
- [x] Web/API/SVGElement #20380
- [x] Web/API/Navigator/keyboard #18662
- [ ] #20211
- [ ] #20331
- [x] Web/HTML/Element/tr #18794
- [ ] #19016
- [x] Web/Media/Audio_and_video_delivery/buffering_seeking_time_ranges #18616
- [ ] #23256
- [ ] #23465

• ~Games/Techniques/3D_on_the_web/Building_up_a_basic_demo_with_Three.js~(deleted)
• ~Web/Guide/Audio_and_video_delivery~(deleted)
• ~Web/API/HTMLAnchorElement~(deleted)

[jasonren0403]

Thank you @queengooborg , I added some other links to the list that is also partially untranslated :(

[skyclouds2001]

seems that all items is going to be done