Turbo Render (#298)

* More responsive React updates on scroll

* `Icon`s now use shadow dom

* Faster Sparkline

* Recycle table rows

* Separate Header from Chain to avoid vdom diffing

* Separate THead from Row.HEADER to avoid vdom diffing

* Throttle rendering updates on chain tabs, also styles

* Minor tweaks and fixes

* Created components for all columns

* Wrapping up Column refactor

* Rename Row--td to Column

* Lazy `Ago`

* Update styles for faster layouting

* Minor cleanup

* Fix Connection

* Use shadow DOM in `PolkadotIcon`

* Comments and tweaks for the List component

* Faster Tooltip and Truncate

* Minor tweaks

* Tooltiped columns can now be copied

* Future-proof Connection

* Remove the <div> wrapper from Icon

* Fix dash on missing graph data

* Clean up some SVGs

* Cleanup and comments

* Localize the use of `previousKeys` to `recalculateKeys`

* Custom appState disjoint from React component state

* Make appState and appUpdate refs readonly

* Cleanup

frontend/yarn.lock

@@ -184,10 +184,6 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
-"@fnando/sparkline@maciejhirsz/sparkline":
-  version "0.3.10"
-  resolved "https://codeload.github.com/maciejhirsz/sparkline/tar.gz/2bdb002b171436be078a84f1e4e617a44ef1fb42"
-
 "@istanbuljs/load-nyc-config@^1.0.0":
   version "1.0.0"
   resolved "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.0.0.tgz#10602de5570baea82f8afbfa2630b24e7a8cfe5b"
@@ -246,11 +242,6 @@
   dependencies:
     any-observable "^0.3.0"
 
-"@tanem/svg-injector@^1.2.0":
-  version "1.2.1"
-  resolved "https://registry.npmjs.org/@tanem/svg-injector/-/svg-injector-1.2.1.tgz#3120e90246d0eb3c4fc6c61586a6f028a3c658ae"
-  integrity sha512-mA5Q5ulPoGQ+e08Vts1R6xw2QU0BKEnMH/KcqoYoS7Gk6imvMTpyFPeu1g+NOZObSIoAzA3/kRzY8m96cEBA2A==
-
 "@types/bn.js@^4.11.6":
   version "4.11.6"
   resolved "https://registry.npmjs.org/@types/bn.js/-/bn.js-4.11.6.tgz#c306c70d9358aaea33cd4eda092a742b9505967c"
@@ -302,13 +293,6 @@
   dependencies:
     "@types/react" "*"
 
-"@types/react-svg@3.0.0":
-  version "3.0.0"
-  resolved "https://registry.npmjs.org/@types/react-svg/-/react-svg-3.0.0.tgz#ebbd0a095339ba20d9ba1d8fb3441eef9aeb5d11"
-  integrity sha512-9KO459enRlNfMWBAQEQraJJb7YeyIZ+U4+R2OVYmtl3WJlN7EKHKHpd9lSxCKzQa7BxQLgUwWxwTa3Nx7GtwEA==
-  dependencies:
-    "@types/react" "*"
-
 "@types/react@*", "@types/react@^16.9.34":
   version "16.9.34"
   resolved "https://registry.npmjs.org/@types/react/-/react-16.9.34.tgz#f7d5e331c468f53affed17a8a4d488cd44ea9349"
@@ -7745,15 +7729,14 @@ react-dev-utils@^5.0.2:
     strip-ansi "3.0.1"
     text-table "0.2.0"
 
-react-dom@^16.13.1:
-  version "16.13.1"
-  resolved "https://registry.npmjs.org/react-dom/-/react-dom-16.13.1.tgz#c1bd37331a0486c078ee54c4740720993b2e0e7f"
-  integrity sha512-81PIMmVLnCNLO/fFOQxdQkvEq/+Hfpv24XNJfpyZhTRfO0QcmQIF/PgCa1zCOj2w1hrn12MFLyaJ/G0+Mxtfag==
+react-dom@^17.0.1:
+  version "17.0.1"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-17.0.1.tgz#1de2560474ec9f0e334285662ede52dbc5426fc6"
+  integrity sha512-6eV150oJZ9U2t9svnsspTMrWNyHc6chX0KzDeAOXftRa8bNeOKTTfCJ7KorIwenkHd2xqVTBTCZd79yk/lx/Ug==
   dependencies:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
-    prop-types "^15.6.2"
-    scheduler "^0.19.1"
+    scheduler "^0.20.1"
 
 react-error-overlay@^4.0.1:
   version "4.0.1"
@@ -7820,21 +7803,13 @@ react-scripts-ts@3.1.0:
   optionalDependencies:
     fsevents "^1.1.3"
 
-react-svg@4.1.1:
-  version "4.1.1"
-  resolved "https://registry.npmjs.org/react-svg/-/react-svg-4.1.1.tgz#6151831e6f03e1ef5a090c61b12c30aa48185425"
-  integrity sha512-PAFIRcXnOT2VXcP31DZJ+Xw11NBkvvDAfnAm5C2iVwVbngFUXPbqEKT0V4jquAOGE7ZDF4/Ok0xKInCkSKq1Iw==
-  dependencies:
-    "@tanem/svg-injector" "^1.2.0"
-
-react@^16.13.1:
-  version "16.13.1"
-  resolved "https://registry.npmjs.org/react/-/react-16.13.1.tgz#2e818822f1a9743122c063d6410d85c1e3afe48e"
-  integrity sha512-YMZQQq32xHLX0bz5Mnibv1/LHb3Sqzngu7xstSM+vrkE5Kzr9xE0yMByK5kMoTK30YVJE61WfbxIFFvfeDKT1w==
+react@^17.0.1:
+  version "17.0.1"
+  resolved "https://registry.yarnpkg.com/react/-/react-17.0.1.tgz#6e0600416bd57574e3f86d92edba3d9008726127"
+  integrity sha512-lG9c9UuMHdcAexXtigOZLX8exLWkW0Ku29qPRU8uhF2R9BN96dLCt0psvzPLlHc5OWkgymP3qwTRgbnw5BKx3w==
   dependencies:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
-    prop-types "^15.6.2"
 
 read-pkg-up@^1.0.1:
   version "1.0.1"
@@ -8346,10 +8321,10 @@ sax@^1.2.1, sax@^1.2.4, sax@~1.2.1:
   resolved "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
-scheduler@^0.19.1:
-  version "0.19.1"
-  resolved "https://registry.npmjs.org/scheduler/-/scheduler-0.19.1.tgz#4f3e2ed2c1a7d65681f4c854fa8c5a1ccb40f196"
-  integrity sha512-n/zwRWRYSUj0/3g/otKDRPMh6qv2SYMWNq85IEa8iZyAv8od9zDYpGSnpBEjNgcMNq6Scbu5KfIPxNF72R/2EA==
+scheduler@^0.20.1:
+  version "0.20.1"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.20.1.tgz#da0b907e24026b01181ecbc75efdc7f27b5a000c"
+  integrity sha512-LKTe+2xNJBNxu/QhHvDR14wUXHRQbVY5ZOYpOGWRzhydZUqrLb2JBvLPY7cAqFmqrWuDED0Mjk7013SZiOz6Bw==
   dependencies:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"