Add helper components for UI

Changes:
- Extracted Copyright from LoginDialog file to its own
- Added some helper components
- Removed unnecessary setup from welcome animation
- Added custom React type for svg element
- Fixed ThemeDemonstrator

GitLab: #12
Change-Id: Ie7158520983dab5c7069f179b6f9531b5106ba85
diff --git a/client/src/components/Tooltip.tsx b/client/src/components/Tooltip.tsx
new file mode 100644
index 0000000..a6ea84b
--- /dev/null
+++ b/client/src/components/Tooltip.tsx
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2022 Savoir-faire Linux Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this program.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+import { Stack } from '@mui/material';
+import { styled } from '@mui/material/styles';
+import Tooltip, { tooltipClasses, TooltipProps } from '@mui/material/Tooltip';
+
+export default styled(({ className, title, ...props }: TooltipProps) => (
+  <Tooltip {...props} classes={{ popper: className }} title={<span style={{ whiteSpace: 'pre-line' }}>{title}</span>}>
+    <Stack>{props.children}</Stack>
+  </Tooltip>
+))(({ theme }) => ({
+  [`& .${tooltipClasses.tooltip}`]: {
+    backgroundColor: theme.InfoTooltip.backgroundColor.main,
+    color: theme.InfoTooltip.color.main,
+    maxWidth: 220,
+    fontSize: theme.typography.pxToRem(15),
+    boxShadow: '3px 3px 7px #00000029',
+    borderRadius: '5px',
+  },
+}));