Sprint 4 Release

What's Changed

• Final update by @danishzubari in #212
• Fixed GUI Terminal by @danishzubari in #234
• actions by @pmccullough2204 in #233
• Tab++ by @ZHG9 in #236
• Parameters Fixed (it will only take parameters name). by @danishzubari in #237
• update by @danishzubari in #238
• Add entity fixed by @danishzubari in #239
• Documentation updated in entity.py and custom_exceptions.py. by @danishzubari in #240
• api refine.. by @ZHG9 in #241
• moved help_command.py from Models to view by @danishzubari in #242
• Delete src/umleditor/usability directory by @ZHG9 in #243
• Card revamp by @jldaggs in #245
• Prettylines by @pmccullough2204 in #246
• Locations by @jldaggs in #247
• Revert "Locations" by @pmccullough2204 in #248
• We are in hell by @pmccullough2204 in #249
• Update README.md.. by @ZHG9 in #250
• Fixes by @jldaggs in #254
• rename_field... by @ZHG9 in #255
• Trying to fix tests- DO NOT MERGE by @katied0921 in #235
• new main by @ZHG9 in #256
• Sprint 4 Release by @willkill07 in #253

Full Changelog: v3.0.0...v4.0.0