update install guide; add getting help; pkg name lowercase

[pawelru]

• update install guide - added back install from GH as this is still a standard way of installing non-CRAN packages. I added install via pak and not remotes because this is also standard for pkgs from tidyverse or r-lib.
• change urls to teal gallery and tlg-catalog
• added Getting Help section with reference to slack channel
• replace browseVignettes(package = "teal") with url as I believe that most of users will read README from within pkgdown webpage.
• replace "Teal" with "teal" to keep consistent package name
• UPDATE: added "Usage section" with gif recording and move all "Please refer to ... for more" under that section

Please add your feedback. I would like to treat this PR as a reference to the issue for other package updates.

[github-actions]

Unit Tests Summary

    1 files    16 suites   16s ⏱️
171 tests 171 ✔️ 0 💤 0 ❌
341 runs  341 ✔️ 0 💤 0 ❌

Results for commit 1b053d9.

♻️ This comment has been updated with latest results.

[github-actions]

Code Coverage Summary

Filename                         Stmts    Miss  Cover    Missing
-----------------------------  -------  ------  -------  ----------------------------------------------------------------------------------
R/dummy_functions.R                 88      63  28.41%   9-76, 101-104, 107-111
R/get_rcode_utils.R                 46       1  97.83%   49
R/include_css_js.R                  24       0  100.00%
R/init.R                            77      28  63.64%   171-178, 183-204, 216-218
R/module_filter_manager.R          107      29  72.90%   62-70, 79-84, 227, 232-245
R/module_nested_tabs.R             170      16  90.59%   72, 119, 123-124, 138-145, 163, 216, 238, 271
R/module_snapshot_manager.R        148     105  29.05%   71-82, 109-118, 122-134, 136-143, 149-164, 177-200, 203-214, 217-223, 237, 258-281
R/module_tabs_with_filters.R        67       1  98.51%   95
R/module_teal_with_splash.R         33       2  93.94%   65, 77
R/module_teal.R                    164      12  92.68%   68, 71, 158-159, 209-210, 230-233, 235, 239
R/modules_debugging.R               18      18  0.00%    25-44
R/modules.R                        118      17  85.59%   206-211, 330-373
R/reporter_previewer_module.R       16       2  87.50%   23, 27
R/show_rcode_modal.R                20      20  0.00%    16-37
R/tdata.R                           41       2  95.12%   146, 172
R/teal_reporter.R                   60       5  91.67%   65, 116-117, 120, 137
R/teal_slices.R                     45       0  100.00%
R/utils.R                           21       0  100.00%
R/validate_inputs.R                 32       0  100.00%
R/validations.R                     60      37  38.33%   111-373
R/zzz.R                             11       7  36.36%   3-14
TOTAL                             1366     365  73.28%

Diff against main

Filename      Stmts    Miss  Cover
----------  -------  ------  --------
TOTAL             0       0  +100.00%

Results for commit: 706f6b0

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[gogonzo]

What do you think about removing image and keeping duck as icon :D
BTW. thin about that mojo accepts emoji as file extension. I wonder if our files could be similar hehe

Suggested change

	# teal: Interactive Exploratory Data Analysis with Shiny Web-Applications <a href='https://insightsengineering.github.io/teal/'><img src="man/figures/teal.png" align="right" height="139" style="max-width: 100%;"/></a >
	# teal 🦆: Interactive Exploratory Data Analysis with Shiny Web-Applications

[pawelru]

I am good with emoji icon but would like to keep the hexagon badge also

[pawelru]

UPDATE: Added Usage section with gif recording

[kartikeyakirar]

LGTM 👍

[averissimo]

LGTM :+1

[pawelru]

I made a mistake in this PR. Please have a look also at the follow-up PR here: #894