pgAdmin 4 commit: Prevent the user pressing the select button in thefi

Prevent the user pressing the select button in the file manager when it is supposed to be disabled. Fixes #2923

Branch
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WEBPACK_DEVEL2

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=7eb44cc88fb4249b53f9cbf02a1a75a4247a70a1
Author: Murtuza Zabuawala <murtuza.zabuawala@enterprisedb.com>

Modified Files
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web/pgadmin/misc/file_manager/static/js/file_manager.js | 12 ++++++++++++
web/pgadmin/misc/file_manager/static/js/utility.js      | 17 +++++++++++++++--
2 files changed, 27 insertions(+), 2 deletions(-)